Sounds like a scary arms-race, though. At some point the bots will probably be very hard to distinguish from "skilled human."
It will be sad if online play becomes only enjoyable with people you already know. I'm surprised how gleeful some people seem to be about this sort of "soon cheating will be undectable!" tech advancement.
Or you just go all-in on the surveillance path and there are models that look at your performance in the game over time, your performance in other games over time, etc. Mediocre player suddenly amazing? Probably a cheater! etc... Not great sounding privacy-wise, but Steam probably has access to the data to do this.