Great shots!
My vote is “not seeing it because it’s probably not happening”. What you’re seeing in fast mode around the 8 second mark is actually wrist movement - one of the myriad blends, but closer to the flexion/extension end of the spectrum.
No finger movement is necessary to produce the escape with this motion. If you make this movement with a supinated arm, that produces a dwps pickstroke. I occasionally use variations on this type of movement, especially with a flexed wrist.
There are some other ingredients happening, including a small amount of elbow and forearm. The mix appears to vary based on whether he’s playing on the bass strings or treble strings. But I think the answer of how he is escaping is pretty clear from this clip.
Note that I haven’t watched all these all the way through so there may be some other variations he uses for the curious.