There's been entirely too much controversy regarding this rule the past several years.
Allow the receivers the leeway to be athletic and "contain" the football in their grasp. "Possession" is, by virtue, a debatable concept, since the earth is always moving, which technically means the ball is always moving too, if you prefer to get that technical about it.
Yet we've been riddled with terms like "surviving the ground."
Simplify it. And it seems they're trying to. Of course, the next rule that will have to be looked at a few years from now is "making a football move." For goodness sakes... just wrap these two rules together. Like Ode said, what happens after "catching" the ball should not matter.
Too many games have been delayed for far too long, because the referees from one game to the next don't know definitively what should or shouldn't be a catch, creating unneeded controversy.
Those of us who've played football in high school, college, or even pickup 2-hand touch back home in our backyards on a fall evening know what is or isn't a catch.
This never had to be that complicated.