I didn't play the EA at all, so I have no frame on context about Tactician mode. I chose to play it here it because D:OS EE became boring on Classic at mid levels and onward, and even on Tactician a little later. I've tried to keep the spoilers really low so there will still be some challenge in the game as I go. I've even made my group roughly 2x physical 2x magic as well, with very little overlap in abilities. So all that said, I really hope I don't screw myself and have to start over. So far @ level 4 I've just found I need to fight things my level or lower.
