I never understand the gamepad bashing for FPS... sure in multiplayer, nope you'd get creamed..!!
but for casual single player gameplay whilst sat on the sofa, chilling out a gamepad makes perfect sense...
Lots of us now plug our PC's into large screen TV's via HDMI to enjoy large screen gaming in the living room..
Nothing better then chilling on the sofa, gamepad in hand playing a game on a big TV.... At 1920 x 1080 from a distance, PC games on a plasma etc look the muts and with a gamepad, beer on the side sat on the sofa at the weekend when the missus is doing something else... Perfect..
Leave folks to their own choice. If he wants to play the game with a pad, its his choice...