Gaming skill is often divided into mechanical skill and decision making. 1v1 like this is dominated heavily by mechanical skill (frame-perfect last hits/denies, the absurd creep block, etc). Generally, it's the sort of thing you can "download skill" in (cheat at) because computers are very good at it.

Decision making is how quake pros can beat aimbotters, and starts to become very important in 5v5 DotA, particularly at a higher level. You'd see it in terms of drafting, ganks, map vision/control, map positioning, sneaking rosh, and other unexpected meta strats. Considering the real-time computation requirements, this is almost certainly a much harder problem.

So while it's entirely possible bot-team would win just through insane mechanics snowballing the game (ganking 0ms reaction times would be fun), or through good-enough decision making + insane mechanics, they could also be outplayed.