I don't think that's what Hotz is saying at all, but he's saying that he's not person for the job anymore.
He writes: "My two part blog post from 2019 remains a true description of the space."
And this is a quote from (part two of) that blog.[0]
> Nobody will have cars without a safety driver in cities anytime soon. Self driving appears to be like fusion, but instead of being perpetually 50 years away, it’s perpetually 5 years away. It’s 5 years away because that’s what the marketing departments are told, but the truth is finally leaking out. It’s going to be decades before robotaxis are profitable, and these companies are burning way too hot to last decades.