Very good point, it does seem like there has been a homogenization when it comes to AAA video game genres. Unfortunately this is what happens when suits and ties call the shots instead of a game's creative director. Every new release has to emulate at least one feature from a title that made its publisher a shitload of money in the past. That's why we get cinematic, open world first person shooters with crafting instead of fucking Fallout these days. That's what executives who don't play video games want to see.