I am fine with it if there is a rule around this that is clear.
My issue is, a knee or sliding are the only time its 'instant' like that. If this happened in the middle of a game - well, we've seen guys play possum before, get up and run it in for a TD. That's what I didn't like about it.
Again I don't know the official 'give yourself up' rules, but if its a non 'give yourself up' act, which that absolutely was (he was just laying on the ground the same way he would in the middle of the game because it was a low throw), I am willing to bet the rule is or should be that it takes a second or two before you actually rule the receiver game themselves up. That's what happens in the middle of a game.