What in your opinion would be a sufficient delay? 200 milliseconds is well within the average reaction time of a human, especially where at the pro level, I'm betting it's much lower than that.
So this current ai is uninteresting because bots can always instantaneously begin to react on any feedback, whereas humans have to pan and drag the camera around to look at different feedback in the first place, let alone react. Mechanically, humans also have to move the mouse all over the place and think of key combinations, in addition to reacting. Not just clicking a static box on cue.
It -would- be interesting if bots were limited just like humans to the camera view, -not- an API that continuously feeds them information. The bot would then have to learn how to prioritize working the camera, and it would be limited to only what the camera sees, etc.
Computers already have perfect memory and recall, so when the image recognition tech becomes good enough to only rely on the visual input, are you then going to say the bot must now limit its recall to "human" levels?
For many things in Dota you also need to move the mouse cursor to a specific point on the screen which obviously takes longer than just pressing a button.