And why doesn't even one of the pre-2015 explanations by Blandino say that?
What Blandino would have said, if the above were true:
"Once you start to fall, there is no completing the process and control must be maintained through contact. There is one single exception to this, which we prefer not to include in the rules. You must have control, two feet down, and then brace yourself and lunge. Watch what happens when Calvin hits the ground. The ball comes loose. He did not brace himself and lunge, so this is all one process. This is an incomplete pass."
What Blandino actually said:
"We've worked really hard to educate people in terms of the catch process...The process of the catch is a three-part process: control, two feet down, and then have the ball long enough to perform an act common to the game. If you can perform all three parts in that order, you have a catch. If not, and you're going to the ground, you must control the ball when you hit the ground. Watch what happens when Calvin hits the ground. The ball comes loose. He did not have both feet down prior to reaching for the goal line, so this is all one process. This is an incomplete pass."