PC players would have jst killed PS3 users in cross play because of Mouse

Ya good move on valves part, sorry but the worse thing you could do for PC gamers is put them next to those who play on consoles. Like it might work in "all friends" maps. 

didn't you read the quote? The move has nothing to do with mouse vs gamepad (there was supposed to be matchmaking that would insure players wer matched by their capabilities regardless of platform) they cut it because the console manufacturers wouldn't let them release 200+ patches over 5 years like Valve do with their other multiplayer games. Maintaining cross platform play would mean that they would have to be kept identical which would have meant less patches for PC.

Hell the PC version will have gamepad support...