I never got into sc2, but didn't they get rid of muta stacks and dancing dragoons? The silly "can move during weapon cooldown" mechanic of sc1 imho was disastr

I never got into sc2, but didn't they get rid of muta stacks and dancing dragoons? The silly "can move during weapon cooldown" mechanic of sc1 imho was disastrous for extreme micro requirements as it meant that units could back off in between firing while the unit AI just wants to stand and fight, meaning even the simplest battle requires extreme micro.