Oddly enough, the master bedroom is the only one with a proper lock on it. The children's rooms have, for some reason I can't fathom, locks which only work from the outside. I think it's something to do with security and the alarm system
Anyway, I don't think she's been unreasonable. I assume she didn't shriek and push him out. Different people have different "rules". Don't have a problem with being naked in front of my own children, but would be mortified in front of anyone else's