Zkuq on 07 September 2017
Probably for the same reason there's not many other options either. I'm not sure what that reason is though. A part must be that it's extra work, and they don't think it's worth the effort. PC people are generally more demanding so the devs do it there (usually), but console people seem to be happy enough with what they get. Also, a keyboard is not exactly greatly shaped for controlling games, so it's more important to let people change their key bindings. A controller, on the other hand, is much easier to get right because it fits in hands pretty well and every button is easily reachable at all times.
