I have mixed feelings about bill's stuff itself, but I think cropping heads and what not is a straightforward way to make 16:9 footage look interesting, fast, detailed and so on. There's an intimidating amount of empty space between the spot and the skater if theyre fully framed the whole clip. I think there's a generation of kids myself included recoiling from HD Greg Hunt/Meza/Ty etc - gifted and accomplished members of the old-guard who sorta stumbled into HD (well Ty fell off into action sports). The industry really bricked the HD transistion and there's a lot of 2009-2015 footage that's uninteresting and slow. The zoom stuff offers a clear way out for someone who's over that, even if it can hurt their footage in the long run. Paired with the new widening of what makes a trick filmable, it's like - You and your friend who has a bigger bag of tricks than aiden mackey can go film a clip just like Bill and it's as if you're in the same canon.
There are other ways to do it, though, and it's refreshing to watch an HD clip that isn't entirely claustrophobic. But I don't think the head chop zoom is the end of days