IMO, I believe certain people (myself included), feel threatened by this level of windsurfing skill level as it moves further away from where most recreational windsurfers are at.
From my perspective, the gateway moves are the forward loop, back loop (you most probably need waves) and the Vulcan.
How many windsurfers do you know that have achieved that! (on both tacks, as well).
I suppose it gets down to how much enjoyment each individual gets out of the sport.
Maybe people should stop posting videos so that we all remain in ignorance of the development of this sport!