A couple of things:
1. I agree with a few of you that ranged units are simply too powerful at this point. By making them do less damage, or by bulking up unit health, or whatever, that does remedy the situation somewhat. That said, does anyone worry that G&K will go maybe too far? The intent in the expansion seems to be to make melee units more meaningful by weakening ranged unit effectiveness, but the unintended consequence might be that ranged units that aren't specifically designed to target cities (archers, crossbows, and their UU's) will become a lot less useful since siege-style ranged units will have plenty of time to set-up behind the stronger melee lines, allowing siege-type ranged units to function like the old archers and crossbows.