Really interesting, I started playing on SC2 so I'm not sure about the dynamics of BW but I wonder how the lack of micro skews the results. For example a fast reaper push hopping on/off the enemy base can't probably be done by a bot. Terrans are also much easier to automate, while Zergs require microing with injections, etc are the demos uploaded anywhere?
This couldn't be more wrong. The amount of glitches in BW that allow got micro potential is huge. It's actually one of the biggest complaints from BW players about SC2, the lack of available micro. Check out th video "Depth of Micro" by Lalush for more info on things like muta stacking, patrol micro, carrier leash range, and tons of other hidden micro.
You are also wrong about your last statement, the limiting factor for zerg that's you're talking about it APM which is pretty much unlimited for a bot. Injects can be automated without taking any attention from anything else.