There is no requirement for a "football move" anymore, that went away this year. It is now an 'element of time', which means that if you possess the ball at all its going to be a catch.
HOWEVER, when going to the ground (as in this case) you also have to maintain possession all the way to the ground now. You can't possess it, go to the ground, and lose the ball (even if it hits the ground).
The most likely 'correct' call would have been incomplete in this case.