Otherwise just say it's 1v1 mid...
When Checkers and Chess and Go pros were beaten by AI at the actual game, people were impressed, because it was impressive. (The goalpost moving involved claiming each consecutive game could not be solved.)
I don't think anyone here is saying Dota 2 won't be solved eventually or that its complexity is beyond the realm of AI (as was claimed of Chess/Go in the past). They're just saying this particular achievement isn't actually meaningful progress. It's using known techniques to do something those techniques are known to do.
Me too but it will never happen. Granted I haven't played DOTA but I've played many other competitive mulitplayer games and they all require one thing which bots currently lack: Communication. A bot playing the entire 5 man team though, that's a different story!
Never mind 5v5, a 1v1 bot that would let Dendi/Sumail/RTZ etc choose any hero and still win would be much more impressive.