First of all, because making cool things that you like ensures you get people that like the same cool things you do.
Second of all, because diversity doesn’t sell when someone has better designs and gameplay.
Friendly reminder that Vendetta’s design had exactly 0 thought put into it and was literally based on what the guy found attractive. Because why bother giving a gladiator scars/any remotely interesting features in a video game where the whole design philosophy was about diversity