Exactly this is the reason why I warned against posting the floor plan. Even after the OP made it clear that there wouldn't be any major changes anymore, comments keep coming that only cause uncertainty. Personally, I really find that inappropriate.
No. It's inappropriate to pretend that everything is great just because you think it's too late. First of all, it is not too late yet, and secondly, not everything is great at all. If you’re looking for self-affirmation, you can also ask Mom. Do you want to tell me that the entrance situation in the children's rooms is well solved? That the weird small pantry makes sense when you have a huge basement? That the dressing room is not way too small to be usable? That the bathroom, despite being sufficiently sized, is not poorly designed? That in a house that is actually not small, there are narrow hallways and corners everywhere? If he is sure, he doesn’t care. Yes, you will be able to live in the house as currently planned, no question. But you will still often shake your head and wonder what possessed you back then.