im pretty sure you can't even redeem your PC copy of Portal 2 anyway since you need to connect your PSN account and Steam account together, which can only be done in-game.
Things like this really make me love certain Developers. Regardless of it was intentional or not, it was funny, and they apologised. Good for them. I hope this game is worth it in the end.
It's nice to know, that with all the never-ending fan boy arguments, and which console/developer/game is best, all gamers can still be brought together by such a thing, as a universal hatred for Bobby Kotick. Delicious.