The missile cooldown thing will be simple enough to mod when there's only 1 tech tree to work on instead of a dozen or more.
It's even easy in the current game, because you only need to mod one component. Replacing the -50% attack cooldown with a +50% attack damage, might just do the trick actually. But that's not my point. I play with a modded AI I made loosely based on Horemvores. If I thought this was personal preference, I wouldn't argue.
My point is, that I really don't see any good reason why it remained unchanged for all this time. It is obscenely overpowered, it should be easy to fix and it was reported on multiple occasions (in multiple forum threads).