skinsngibbs4life;1141503 said:
the rule is you cant get on the ground during the celebration. Hence why TO got called and portis didnt
Well, the rule is "excessive celebration." There are things that are tied to it, like using the football as a prop, or (according to the commentators so excuse me if I take this with a grain of salt) lying on the ground. Although the latter two are sufficient conditions to call the penalty, they aren't necessary.
Apparently Portis celebrated excessively, so he should have been called for it.