It was Williamson that Bendtner "ran into", wasn't it? I'm pretty sure it was revenge for the situation earlier in the game where Williamson brought down Bendtner off the ball to make sure he wouldn't get first on an excellent cross from Walcott. That one would have pretty much guaranteed 1-0 since Theo got the ball past the keeper and everything. No one's talking about that, though.
What comes around goes around, I guess. Newcastle should just keep their mouths shut and accept that they got matched in their own tactics.