Committed to, actually. He made a video about how they were going to start doing it more: https://youtu.be/fHsa9DqmId8?t=1035. Also, more recently: https://www.youtube.com/watch?v=S2xHZPH5Sng.

I thought it was actually just native advertising for Mythic.

Besides that I think the topic is prescient; there's a company local to me in Australia called Brainchip that is doing something similar I think. Given that NNs are just a bunch of matrix multiplications it's a promising approach.

I occasionally used to watch Smarter Every Day then he started doing a lot of this stuff, I think one of them might have been for an oil or defense company which I found utterly gross and I've avoided watching the channel ever since.