You can set up your skills in a gamepad efficient way so that you have access to everything you need within a few button presses. I can't argue that it takes more presses to get there but I can get to almost any skill I need with gamepad in a second or less.

I also don't give two shits about maximizing my end-game DPS to the extent that you're talking about. Really doesn't matter to me. I'm going to play well with my gamepad and that's pretty much going to be it lol. I can do the things I need to and I can play well, that's what really matters to me. I can be "on the ball" and play very well with the gamepad.

If we're talking about super high-end elitist DPS races then yeah, I guess gamepad is inferior. Keyboard will always be a little faster sure, it will always have greater functionality. However outside of chat, there's nothing that requires a keyboard vs a gamepad.