i love micro wars, it helps a lot in my opinion. (atleast a few of them)
and if the situation is bad, think about it in a real game, the situation wont always be good and maybe an ally dropped and he has those same exact units you were given, and just by chance your enemy has the same units as your enemy would have in micro wars.(lol?)
it's really helpful for people who dont know how to play cause' people will understand to keep units alive you need to micro and will make them more knowledgble and prolly more better if they watch some replays.