Not as cut and dry as you make it seem Darth, it's not just how modern technology isn't available to them, it's how it's STILL available for Koko. Guided missiles alone would make her invincible with no suitable counter anymore.

She didn't just start Jormungand and then stood still, her plan was having her own squad be the deterrent against the rest of the world.

Your point A is still valid though, but you're clearly underestimating the power of an all knowing artificial brain.