I came back here after the video (btw he speak very deliberately, watching it at 1.5 or 2x while digesting the message is fine)

I'd compare it's message to a "warning !" sign. It's there to make you stop and think about our computing space, after that it's up to you to act or not on how you perceive it.

That's totally wishy-washy, so it might not resonate, but after that I went to check more of what dynamicland is doing and sure enough they're doing things that are completely outside of the usual paradigm.

A more recent video explaining the concept in a more practical and down to earth framing: https://youtu.be/PixPSNRDNMU

(here again, reading the transcript won't nearly convey the point. Highly recommend watching it, even sped up if needed)