You have to use completely different words when you're describing something that's completely different. They "re-word" the name of the President every time a new one gets elected.
None of this changes the fact that, before 2015 they were looking for a physical act, and after that they were looking at body position.
If you want to see where the football move was removed, look at the shrinking of part C of the catch process. Or read Pereira's reaction when the new catch rule was announced.
2014
c) maintains control of the ball long enough, after (a) and (b) have been fulfilled, to enable him to perform any act common to the game (i.e., maintaining control long enough to pitch it, pass it, advance with it, or avoid or ward off an opponent, etc.).
2015
(c) maintains control of the ball after (a) and (b) have been fulfilled, until he has clearly become a runner.