I like the Turing test experience that the bots bring. None of the bots have passed this test yet though.
I live in NZ, and there is almost never anyone online when I am playing, of the ranked matches that I have played only one was confirmed to be human. Without bots the game would be unplayable for me at this time.
I would be more than happy to dedicate processing time to running AI vs AI simulation matches if this would help the AI programmers.