I don't think Disappointing Thing 1 is necessarily a bad thing. I do emphasise to colleagues at work that our Women's Assoc is for everyone, not just women. I think there are a lot of men who are either entirely unaware of it (not if they work on projects with me, mind you), or just think it's irrelevant to them, "Oh, EBear's thing," or something. Men are massively in the majority in our company, and however brilliant and prominent women are, I'm not sure that real change can be achieved if you haven't got at least some of the men on-board. Better to have the right man on board than the wrong woman. Having said that, the other disappointing things make me suspect they didn't look that hard at whether there were any suitable women. Also, it sounds like they've read recent research pointing to companies with more diverse staff tend to be more profitable, rather than they really believe in equality for the sake of it.
Disappointing Thing 2 would have me raging. I would be giving feedback (don't care whether or not they asked for it, they clearly need it.)
a) I would be finding some articles on the use of speech and how things can make you feel marginalised and irrelevant.
b) Confidence. Hmm, I think he would be getting information about unconscious bias, some reports on women in IT (I work in IT; there are probably similar reports for other industries, particularly male-dominated ones), and highlighting things like something like 67% of women working in tech have experienced sexism in the workplace. For IT, there has been a fair bit on why women don't enter, as well as why they don't say. I would probably be writing an essay about why he is wrong and blamey, "it's all your own fault for not being confident enough." (Oh, I definitely would - I did, and I recently updated it and turned it into an article on women in STEM for our internal women's magazine. Waiting to see if some of my arsier points get edited out, or if I was sufficiently diplomatic...)
c) It may well be the culture is better for women than his previous company. I suspect it's nothing like as good as he thinks, partly because of the rest of Disappointing Thing 2.
Do you know if they've asked women in the company how they feel about the culture? If not, maybe someone could set up a survey monkey anonymous survey to ask some pertinent questions.
I'd ask if any of them have read Lean In (I'd really want to ask if any have read Delusions of Gender, but I suspect Sheryl Sandberg is going to be more palatable than Cordelia Fine.) Maybe you could suggest setting up a Lean-In Circle under the women's group.
Ask what HR are doing - my employer has been running compulsory training for managers on unconscious bias, as has Google (their presentation is available on Youtube, and I recently posted a link elsethread - there are links to a couple of other relevant articles too.) Another company I worked for ran compulsory workshops on harassment awareness, to make sure everyone knew what behaviours could count as harassment and was therefore unacceptable. That sort of programme does need quite a bit of investment, but budgets will be found if they see enough of a need. Also, what recruitment policies do they have? Do they strip out things like gender-identifying information before passing on CVs to hiring managers for review, so they really are looking at the skills and experience, rather than "someone like us"?
Our women's group runs lots of lunchtime (i.e. doesn't interfere too much with normal work) development sessions - for example, there's been one on Amy Cuddy's TedTalk and body language, and ones on time management, identifying your strengths, work-life balance and so on. There's also internal informational presentations, on thing like the tuition reimbursement scheme, to help women know what resources are available to them, and do them. Plus we have talks from senior managers about their career paths, giving hints and tips - and again, it's a way people at all levels and all departments get to know who some of these high-up people are, who can otherwise seem faceless, remote and irrelevant (and one of the things which has really struck me is just how varied and diverse people's backgrounds are - not many have taken a traditional career ladder, but zig-zagged around a bit.) One of the best things about those is that's where the networking goes on, because you do get to meet people from all other departments, that you wouldn't normally come across, and it's an opportunity to hear about things going on in the company - these days, I'm more likely to know about HR initiatives and the like before my manager.
Since the women's assoc has been active, I have seen a culture change - things are improving (there are other things going on as well, not just the women's assoc.) It's made me feel more involved with things, and I am therefore more motivated. Plus, it really annoyed my idiot senior manager who initially tried to block me from getting involved with one of the committees, and sent my manager to HR to see if they could prevent it. I was a bit disappointed when he dropped that, because I was looking forward to the fight between him and these senior women. I suspect his manager pointed out he was only going to make himself look a fool and he stood no chance of winning, as he was rather proving the need for it all by his reaction - and I probably wouldn't be quite so keenly involved if it hadn't been for that initial reaction. It does cheer me up to know that me doing absolutely nothing wrong is annoying him.
I know I have gone on at length (I do tend to get into a stream of consciousness), but I just think you have a great opportunity to get some ideas put forward and turn it into something useful despite Disappointing Man Manager, and even with Disappointing Thing 3, I'd bet there are some who are disappointed, or at least would be willing to support something useful coming out of it.
Still, you never know - sometimes people do step up to the mark against the odds, so perhaps he'll surprise you all. (Nah, I'd be giving him encouragement and ideas, just in case he lives down to expectations.)