Just FTR, Shin Jinseo's result in that latest match is seen as extraordinary. In the last few years it's been common for top pros to play bots on 3 or even 4 stones.

The thing about playing strength in games like go is that it doesn't map at all linearly to results. It could very well be the case that the bots are only a few points of handicap away from perfect play, but thousands of points of ELO.

I wrote about all of this on Stack Exchange, along with some napkin math, a couple years back: https://boardgames.stackexchange.com/a/61058

Anyway, this is a poor argument for a possible "limit to intelligence" because of course the game is finite (even if the search space is extraordinarily large). Of course you can't beat the "hand of god", by definition. Of course you can create games and puzzles for which "hand of god" is a coherent concept. It shouldn't be too hard to specify games where it isn't, though (perhaps something involving real numbers).