100%.agreed.. a great example of this was the casting of the film Wonder Woman. WB had the opportunity to show a new kind of female body type by casting someone that looks the part, as in someone tall and muscular.. but instead we got the same skinny, supermodel type.
Wonder Woman should have looked like some of those cosplaying body builders or maybe a X UFC fighter like Gina Carano (from Mandelorian)
A lot of the posts you see here are an example of why this isn't done, though. People expect every female character to look like a model, dress like a dancer, and basically embody a stereotype that is decades old.. Guaranteed that making a decision like this would invite tons of unwarranted criticism or they'd feel it wouldn't sell.
I'm looking forward to the day when we say a lot of different types of people represented even in hero roles, and we're slowly getting there, but we've got a ways to go. That goes for female fighters of course, but also lots of other types of archetypes too.