I personally don't see why vision is important, if anything I'd frame vision as useful to humans, rather than being the baseline.
Pluto uses Ghosts to counter Dragoons. Any SC:BW player should know how stupidly impossible this is for humans.
For the non-players out there. Ghosts have an ability called Lockdown that can stop mechanical units (like Dragoons) from attacking or moving for long periods of time.
The problem: it requires you to click on a Ghost, then click on a Dragoon.
No human in the whole history of SC:BW would seriously do this. At best, Ghosts in practice are used vs capital ships (like Carriers or Battlecruisers), because in smaller numbers humans are fast enough to click and perform these feats. (Carriers and Battlecruisers are very expensive, very very powerful, units. So they are weak to specialized attacks like this as you cannot build many of them due to their incredible cost in resources).
But dragoons? This is the mass production unit of Protoss. This is so far outside the scope of human-level APM that the games Pluto plays are useless. Lockdown simply isn't feasible to be used vs what amounts to the standard / stock infantry unit of Protoss. There's simply too many opponent dragoons to even click on.
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I dunno what kind of "APM rules" we need to give SC:BW bots to allow them to have a fair fight vs humans.
But the rules we have in place today do NOT represent a fair fight at all. Computers have stupid amounts of speed and precision far in excess of a human player.