Well I can give an opinion on this.
It is totally true! You can wear anything simply for fun or because you feel it "looks good" on your character and it doesn't have to be in a sexual way.
As a straight female who plays a female character I wear things I like and/or things I think looks good on my character.
Since I am a straight female I am not attracted to my character in a sexual way so therefore anything I wear I chose for other reasons and I have wore the bunny suit in the past as a glam around when it came out.
I have glamoured bikinis/swimsuits sometimes too! It isn't because I want to sexualize my character...I just like doing whatever I feel like and if it looks good to me or I like the design or colours then I go for it. I mean I wear bathing suits in real life to go swimming...it seems normal for me? It isn't about bedroom activities.
My choices have nothing to do with how others may perceive my character...I just do what I find fun and what I feel like doing for my character's glam. Maybe like a few times I glam things that my boyfriend would like just for fun, but 90% of the time? It's my own choices and has nothing to do with trying to be sexy.
So, no, saying no self-respecting woman can wear this glamour in a fantasy video game is taking this way too seriously. It's a game and I think bunnies are cute since I was like 5 years old and had no idea what play boy was.
