Let's let Blandino clear things up:
"Is it a catch?"
Blandino asked during his weekly segment on NFL Network's "NFL Total Access." "The referee will have to make the determination, did the receiver have both feet down prior to him getting contacted, which sent him to the ground. If that's the case, then he doesn't have to hold onto it when he hits the ground.
"So you're going to see control. Just as the second foot comes down, there's going to be contact, now he goes to the ground. The referee determined that this was not part of the process. He'd completed the catch process, and therefore did not have to hold onto the football."
So Blandino says Dez's catch was good. Wait, what? Well... he said so right here. Ohh, I'm sorry, he said the above quote when upholding a referees on the field call of a completed catch last year. Only difference is the catch he upheld the player took only two steps and didn't make another football move, whereas Dez took 3 steps, switched hands, and lunged for the end zone.
Game. Set. Match.
Smoking gun.
Blandino is a liar.