I am sure the winning bidder thought they were bidding on the correct spelling.
It's not like there is a big .AI market for crappy typos.
It's the danger of using social proof to pile into auctions that already have bids. You see a bunch of bids, and assume it is a good domain (and the correct spelling).
Oh I know and it's like those Lnvestor or Lnternet domains - they always end up selling to illiterates, but at much, much, much lower prices that the real word would.