Can i just say, and i preface this by saying i haven't really seen much of this combat, but can i just say that this looks like the same button mash/parry/roll away combat in so many other games, including witcher 3?
Going through this video step by step for a few moments.. first is a button mash sword swing into midair, he gets rightly punished by the enemy lunging in on him. Then it cuts to some other part where he's done the ciri teleport in an attempt to get behind the mob, which he does. Then it cuts again to two more ciri teleports and a bunch of hits on the mob. Finally it cuts to the guy getting stabbed because he ciri teleported into the mobs hitbox for a long stab.
So, basically, Witcher 3 except with, i guess, less expansive areas and harder, unoptional enemies vs. your level? Everyone says BB combat is some kind of extra-videogame experience but from what i can tell it's not that different from what's in Witcher 3, or most other such titles.