Your impossible to argue with, so I cba. I'll leave by saying I have done my level 2 badges and referee under 15's football on a Sunday, and I know for a fact that, everything in that situation was wrong. When a player falls over and handles the ball, it is either because it has been a foul against him, or he got it wrong and he has handled the ball. The latter is the case. Gomes cannot play advantage with Nani lying on the floor behind him, so he took the foul. He has every right to take the foul, as no immediate advantage was present. All the Tottenham players saw it this way as they walked away expecting Gomes to take his free-kick. Howler of a decision, argue all you want, I will leave it at that.
He has no right to 'take' a foul because no whistle was blown. It's schoolboy stuff.