The thing that bothers me here I think that has been alluded to is about the nature of the service and the people they want to help.
There's a lot of trust in there. Rape crisis is a well known and trusted org. When you're looking for help and may have taken time to get yourself to take the step, you want an org that you trust to look after you.
Most rape victims are women. Even where services are open to men and children as well, I would put money on most of them wanting to talk to a woman. Firstly because they are overwhelmingly likely to have been the victim of a man, and also because women are seen as kinder more understanding etc. Also there's the aspect for women and girls that many feel a strong preference to see a female for anything personal.
This centre knew that this would contraversial. They knew that a lot of people wouldn't like it and would make that known. That as a TW this appointment would attract press coverage etc.
This surely would make victims think twice about going there? Just because of all this noise? Which is nothing to do with their core purpose. Which they should be avoiding distraction from.
I think it's reasonable for orgs to avoid a contraversial person even if they are qualified because that takes over from what they want to do which presumably is give the message they are all about victims of sexual violence.
So even before you get onto the other points raised on this thread, it seems like a strange decision.
My conclusion is this is a political/ pointed move and nothing to do with anything else. They wanted this to be a move that caused friction, arguments etc. But why? Why would a rape crisis centre be in the business of courting controversy like this?