The bug with ranged attacks has, indeed, been left to be fixed later, because it falls within the fiendishly-complex combat script, which I plan on completely rewriting as the final stage of the War Improvements Package.
As for this suggestion...I don't think it's worthwhile to nerf ranged combat at this point in time. It's already significantly weaker than melee in many ways; I don't think it's a good idea to give people the idea that after they've shot once or twice, their ranged units will become essentially meat for the grinder.
