I don't follow. First you said he didn't crab, which is incorrect seeing as he was clearly in a crab before landing.
Then you said that he is "making rudder displacements that look like crabbing" but in the same sentence note (correctly, but in contradiction with the prior part) that you don't use rudder to crab.
Lastly you say that "he holds the rudder so that the nose is into the wind" but there is no rudder needed (or applied in the video) to hold the nose into the wind. Nose into the wind, aka a crab, is the default state when the wings are level and the ball is in the middle.
It takes rudder to move the nose away from the wind and toward the centerline (aka decrab, aka slip). Maybe by "hold" you meant "no displacement," but that is what a crab is, which you maintain he didn't do.
We've agreed that he decrabbed incorrectly (by doing it too late) but what is incorrect about the crabbing?