The thing I hate is that they can see you in the jungle/brush. They just can. I've seen them use targeted spells on me in the brush, and they obviously aren't warding.
I get that they're bots and need some advantage but that's not going to teach someone how to play the game. I only play bots with my friends now and then, so it's extremely frustrating for me when the bots do things a human can't. I don't like it when I look like an idiot because I thought there's no way the non-warding bots would see me take their blue... and then three walk up and gib me. Yes, it's a bot game and not a big deal; but it still sucks.