This is a fantastic skill set to solo-hack a complicated piece of software and produce a proof-of-concept, but not for building a tool that people actually use. See his track record of never building any successful product after his PS3 & iOS jailbreaks, his latest resignation memo from Comma.ai, and his resignation from Twitter after just 4 weeks.
So I think it's kind of hilarious that you're citing him and his newest tinygrad project in one sentence with the assertion that PyTorch & friends will soon be considered ancient and clunky tools. While I don't necessarily dispute the latter, I'm certain that tinygrad won't be the one replacing them.