In 2015, as a reaction to the incorrect overturn of the Dez catch, the league removed the requirement of the football move -- in particular, advancing with the ball -- for 2015 only. Now they've just put it back.
Here are three different versions of the catch rule, one for each of the last three years. The only differences are the parts in color.
Notice the similarities of the blue parts.
2014 Rule 8, Section 1, Article 3
A player who makes a catch may advance the ball. A forward pass is complete (by the offense) or intercepted (by the defense) if a player, who is inbounds:
a) secures control of the ball in his hands or arms prior to the ball touching the ground; and
b) touches the ground inbounds with both feet or with any part of his body other than his hands; and
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 Rule 8, Section 1, Article 3
A player who makes a catch may advance the ball. A forward pass is complete (by the offense) or intercepted (by the defense) if a player, who is inbounds:
(a) secures control of the ball in his hands or arms prior to the ball touching the ground; and
(b) touches the ground inbounds with both feet or with any part of his body other than his hands; and
(c) maintains control of the ball after (a) and (b) have been fulfilled,
until he has clearly become a runner. A player becomes a runner when he is capable of avoiding or warding off impending contact of an opponent.
2016 Rule 8, Section 1, Article 3
A player who makes a catch may advance the ball. A forward pass is complete (by the offense) or intercepted (by the defense) if a player, who is inbounds:
(a) secures control of the ball in his hands or arms prior to the ball touching the ground; and
(b) touches the ground inbounds with both feet or with any part of his body other than his hands; and
(c) maintains control of the ball after (a) and (b) have been fulfilled,
until he has the ball long enough to clearly become a runner. A player has the ball long enough to become a runner when, after his second foot is on the ground, he is capable of avoiding or warding off impending contact of an opponent, tucking the ball away, turning up field, or taking additional steps.
Those are all football moves. They've put the football move back into the rule, which they had to do in order to have a time element after control and two feet down.
The only version of the catch rule that you can actually use to overturn Dez's catch is the 2015 version. The problem with that version of the rule (besides the obvious fact that it did not yet exist at the time of Dez's catch) is that it was so vague and incomplete, it couldn't be used by officials in real games last year with any consistency. So they've quietly changed it back.
I say "quietly" because the league published this year's new
rulebook over the 4th of July weekend. Blandino's
tweet about the catch process was released on the previous Friday -- the end of the news cycle. And even then, it was simply a re-tweet from a year ago, with the 2015 wording of the rule. No mention of any change in the language.
As you might have expected, this was the least conspicuous way, at the least conspicuous time, for the league to admit its mistake.