The importance of APM always struck me as evidence of misguided design in Starcraft/Starcraft II. It takes emphasis off the parts I find fun (the strategy), and puts it on the parts of the game that aren't interesting at all: micromanagement of units is just drudgery.

To increase the strategy and reduce the drudgery, you could either implement APM restrictions directly on the player (drop clicks, etc. -- very annoying) or you could design units to be maximally effective by default, without micromanagement.