If I remember correctly, when you start playing the game, they match you against actual bots, which are pretty much unskilled. Maybe that’s why he uses that word.
How interesting. Probably because playing against bots in a multiplayer game usually sucks. If really high AI difficulty was the norm, then that wouldn't work.
They're not very skilled in a lot of games. They can be a threat to newbies, but they're easily fooled by experienced players, and can even be less accurate vs more advanced moves, involving motion.