I agree with this, I think he linear pattern round the kit fills are really only a facility builder and in certain cases a dramatic statement in a song. @Kirstin have you watched the KH session we had on here, it's great, link below. The video you link to is brilliant and, for me, it's more to do with his musicality than speed or facility, his phasing and the fun he is having isn't based on technical pathology but the output. It's interesting discussing this and then watching the video and seeing how he plays... his approach is of a complete instrument, his hands build phrase and often the ostinato planned by his right hand as well as his left, it's not about patterns much more about phrases... I hope that makes sense. I am trying to do things like this in my solos which are pretty bad atm, but I'm deliberately reaching beyond my skills.
I've also been very married to sticks and I want to break that, I love the use of the hand on the head Claus does. I want to break my habit of always having the same thing in both hands, next solo I post I might try that, see how brave I am 🙂 . It doubles or triples the amount of colour/voice you have under your hands.
https://www.stephensdrumshed.com/courses/qa-calls/3-8-22-qa-w-claus-hessler/