Even taking macro out of the picture, build strats, whether to expand, and how well you defend your expansions will still show how well people can play.
See.
http://www.youtube.com/user/KlazartSC
Things such as burrowing units to hide your numbers, moving away drones/scv's on a reaver drop, and counterattacking will still be based on skill. I think seeing more control over every battle on a huge scale would be a lot more fun to watch, than watch them build units building by building. If anything we should see more action, and less down time in matches.