Was the whole reason for you to write this article unit clustering?
I already heard the developers talk about how the units cluster up at the moment and how that overpowers the splash damage units.
StarCraft 2 is still in alpha phase and I do think Blizzard will do something about this till the release.
Sorry but what you've written, Greth, sounds just like something from the Battlenet forum plus your writing in the first two thirds of the article.
Adding a smiley to make me look less harsh:
