The “wanting to distance oneself” is an extremely pragmatic reaction: if you believe similar arguments need to be made, you have a legitimate interest in putting forth good versions of those arguments. He has a big platform and this will be portrayed as “the case” for techno-optimism, not to mention the attitude and tone.

I’m not really sure what the purpose of publishing something like this is. It doesn’t really seem intended to convince anyone of anything? Is the controversy the point? Galvanizing some “base?”

Most plausibly, it’s for attracting other ultra-wealthy/ultra-powerful (and yes, unelected!) LPs, which would make the tone rather ominous in my opinion.