If Cam simply handed the ball to a kid as a celebration (I know that's what he does at the end) that is contrived, that is a celebration, that is NOT a LOOK AT ME I AM WONDERFUL. I don't think everyone agrees that spiking the football is the same thing as that. I sure don't.
I'm not bitching because he celebrates, I agree they should stop him if they don't want to see it.
As for on field trash talk as someone else (Hawg?) mentioned, some of it is eyeroll worthy, but that's where it belongs is on the field. What Cam said to that DE seems like garden variety trash talk and I don't have a problem with it. I would bet every dime I have that quite a few Pats trash talk on the field hellaciously also.