Took watching the replay to figure out why I lost so horribly to Jasper despite having a larger army than his (2 Minotaur, 2 Ogre, 1 Emissary vs 1 Grizzly, 3 Scallop).
Turns out the automatic targeting of the unit AI is NOT ideal in all situations.
I needed to manually target the scallops to get them dead first, THEN focus on the Grizzly.

If I'd done that I'd have cleaned up, murdered his com, gone back for repairs and ate all the reclaim.

Or you know... Just click them. With area attack holding control you split orders. Target can confuse units. I found it useful mostly for Crabe spires and artillery like badgers.