His video on Yugoslavia was top notch (and got complimented by Yugopnik) but his stance on SMO and China is obviously very different from the Lemmygrad line. He does make some interesting points though, which I think are better articulated and evidenced in material reality than the usual ultra-left nonsense. I would love to read how more knowledgeable comrades would engage with his points (not just handwave them away as idealist).
I found YouTube links in your post. Here are links to the same videos on alternative frontends that protect your privacy:
Link 1:
Link 2: