Every major release not strat is focused on a gamepad. Most of them have poor or mediocre keyboard controls. And that's not even getting into the plethora of great very cheap very good games on indie games on steam that work much better with a controller.
PC gaming is much more than just one interface type. There's literally no reason to own a console right now unless it's for some exclusive type game that u must play.
There aren't enough buttons on a gamepad, and the controls on them often aren't rebindable.
The best control scheme is always a customisable control scheme.
Also, since a gamepad has to held in both hands, it's difficult to use it in combination with another device (like the flightstick + mouse combination I used to play Half-Life).
I basically only play RPGs and strategy games, and I think RPGs should play like strategy games. As you point out, gamepads and strategy games don't mix.
What's a "major release", anyway? In the past few years, the new games I've played are BioWare games (but not ME3), Skyrim, Crusader Kings II, Europa Universalis IV, Civ:AE, XCom, Wasteland 2.
You're not going to see me playing Assassin's Creed or CoD or anything with action combat unless I can mod out the action parts.