I think it's somewhat clearer the way Blandino explained it, because it creates an internal consistency between this and an existing rule on receivers. The question officials now have to ask is, "would the receiver have been considered defenseless if he got hit in the head at that exact moment?" If the answer is yes, that player is not a runner and therefore had not fully completed the process of the catch at that moment. I think anyone watching the NFL regularly would absolutely, positively agree that Bryant would have been protected from head contact at the moment the ball came out, and therefore the new wording clearly clarifies that that drop in particular, was indeed a drop.
It's clearer because comparing it to another common rules situation makes a lot more sense and is a much more objective question than "was he making a move common to the game?"
If you think about it, it makes absolutely no sense that there would be a situation where a catch was considered 100% completely made, but the player was still considered defenseless and protected from head contact.
At first I was kind of annoyed because the cricket adjustment that we talked about in this thread is very clear and I thought they should have simply lifted it. But actually thinking about this I like this clarification better, because it mandates a consistency between two rules for the same situation. In fact I like the change a lot more at the end of this post than I did at the beginning. The first sentence shouldn't say "somewhat."