It's not picky at all. If even one of those incidents happened in my house, it would be unusual and weird and I'd be wondering wtf was wrong with DH.
I think you actually need to work through these "smaller" incidents because what you're realising is that they're upsetting, they're unpleasant and they're symbols of his need to control, his laziness and selfishness, and his lack of respect for you.
Back in March, you kind of thought the only problem was when he had stages of being a controlling sex pest, but apart from that he was ok and life was fine. I think as time goes on you're beginning to see more and more that he isn't fine, in fact he's almost never really fine, because the whole way he relates to you, the children and the world around him is fucked up in a way you're never going to fix and which isn't going to get better.
A lot of these things that you're picking up on now you would have not been happy about in the past (because he's upsetting the children etc) but you probably wouldn't have seen it for what it really is, his inability to be fair, to put the children's needs before his own etc.
I think it's important to be "picky" - you're not being picky btw, all those things you've mentioned are weird at best and fucked up at worst - because you're truly starting to see how his abusive controlling behaviour impacts every aspect of your lives on a daily basis - you can't even take a shower without him turning it into something perverse, he can't even bake a cake with his child without using it as a way to control and bully,just so he can look good on FB
Good luck with WA tomorrow. Its scary but we're all behind you