If he wasn’t filming, with the possibility of it being live streamed, they would have given him the usual hiding and then charged him with the traditional resisting arrest.
I don;t know why these YouTubers feel the need to deliberately do this stuff. As a lifelong motorcyclist, I have experienced enough of it while simply going about my own business riding down the road.
And as far as terrorism laws re filming cop shops etc goes, who gets to define who or what a terrorist is? It started out as a knee-jerk reaction after 9/11 in the USA and now it seems to apply to any citizen walking down a public street with a phone recording a cop shop. And the legislation has already been weaponised to include “greenie” protesters and others who have nothing to do with terrorists crashing aircraft into skyscrapers etc.
Geez, don’t get me started…