Some people will see flow when others don't and vice versa, I guess. I saw it, except during the 'mirror' portions of it. I am not a fan of mirrors, though. It's not flow to me and a cheap way out. The clip is certainly not traditional liquid, and I do think it has flow during some of the non-handwave parts. Anyways, what's important in the end is whether it looks good, not whether it fits or doesn't fit within old categories or motives for exploring something new. Language always adapts after the fact, and general audiences don't generally follow context and history of something this obscure.
And so to offer critique of my own to help make it look good, I've watched the clip a few times now, and I think three main points need work:
1. Head/legs don't move with much purpose, except maybe a couple seconds out of the clip.
2. If you're tracing out something with one hand, don't leave the other hand stagnant for too long. And when you do move that other hand, I'd suggest something complimentary but not matching to the other hand. I think 0:34-0:35 is a good example of that.
3. Explore new hand positions to 'stack' with, as kai mentioned. Maybe take a cue from tutting for new hand/arm positions to work with.