Haven’t read much about that play, but that type of stuff really needs to be removed from the game. There needs to be a rule about giving yourself up even without calling for a fair catch, kneeling, etc (if there isn’t already, I thought there was).
I remember several years ago when TTU tried a fake kneel down play and the refs blew it dead. I think this should fall in the same category. You don’t want punt coverage to full speed run a dude over because they didn’t hear a whistle when the dude is just standing there.