You're misinterpreting the rule because it was ruled Dez never completed the 3 step process because when a receiver is "going to the ground" control isn't established until they contact the ground and hang onto the ball throughout that process. That's how Blandino explained it in one interview.
LOL, I have repeated shown you the NFL's own interpretation that says that is wrong and challenged you to show something besides quotes from Blandino to refute it.
2012 the rules read the same as they did in 2013 and 2014. There were no rule changes in 2013-2014 in the catch rule. There were no point of emphasis on the catch rule in 2013-2014 that addressed a change in viewing going to the ground. Care to guess what that means?
It means that this interpretation
A.R. 8.12 GOING TO THE GROUND—COMPLETE PASS First-and-10-on B25. A1 throws a pass to A2 who controls the ball and gets one foot down before he is contacted by B1. He goes to the ground as a result of the contact, gets his second foot down, and with the ball in his right arm, he braces himself at the three-yard line with his left hand and simultaneously lunges forward toward the goal line. When he lands in the end zone, the ball comes out. Ruling: Touchdown Team A. Kickoff A35. The pass is complete. When the receiver hits the ground in the end zone, it is the result of lunging forward after bracing himself at the three-yard line and is not part of the process of the catch. Since the ball crossed the goal line, it is a touchdown. If the ball is short of the goal line, it is a catch, and A2 is down by contact.
that clearly shows that the catch process can be completed after going to the ground begins was in place in 2014. It further ties into Blandino saying that they looked for a football move.
Read the case play and compare it to the nonsense Blandino is saying. Dez didn't take steps as it was all part of going to the ground...well the receiver in the case play had one down, was contacted, and then got a second one down. In other words this player going to the ground took two steps to complete that part of the process, Dez did in GB as well. If the process couldn't be completed with a football move, then why did Blandino bring up looking for one? Because under the rules the catch process did trump going to the ground.
Each generation of his BS went farther from what the rules said into what the rule later became. In 2014 a falling player could become a runner, in 2015 they must be a runner before they fall. That is not a change in wording, that is a completely new rule.