I'm happy we stumbled into in a state where you can buy a controller and plug it into your computer and it'll likely work hassle-free with basically all of your games. And I think that's what most people care about, more than being able to use wacky controllers with extra buttons.

Hell, configuring my own controls for a game is one of my least favorite things to do. I haven't even played the game yet, I don't know what button should do what!

The way it is, the devs know what kind of controller everyone will likely be using, they can figure out their ideal mapping for how the buttons should be used, and we all have an easy time using our controllers.