The tactics thing was a wonderful inclusion. In fact, assuming the tactics actually work, then the game devs DID handle it. Unless you're implying that the characters should always behave in some other predefined way with no influence over how it works is somehow a positive :S
I'm just saying the basic AI was awful, unlike say, ME2 where Squad Power Usage was actually okay. I liked that tactics too, but creating your own AI shouldn't be necessary while playing on difficulties other than the hardest one (difficulty was another problem DA1 had, it was far from constant).