FUNKeThis is just a theory, but I'm willing to bet this is less about pissing off thousands of TF2 players and more about pissing off valve. especially because I doubt he monitors the reactions of people in those games, rather just sicks them onto official servers and waits until valve makes a move.
Of course, a voiding lack of empathy for all those players is a necessary ingredient for all of it.
If he wants to piss valve off, why attack TF2 of all games?