the rules change a bit in the End Zone.
You must maintain possession all the way down in the endzone. he clearly didn't do that.
See what I mean.....Skins can screw up a wet dream.
Actually it's no rule change at all, if you catch the ball while falling anywhere on the field you have to maintain possession all the way down. Center of the field, sideline, endzone, that's consistently the way to prove control in a falling reception.