Of course it is possible to exploit any system. Our Army is based on systems - all of which are exploitable. There is no significant drawback in the enemy eventually being able to identify the type of AI in use and destroy it - in much the same way the enemy is able to identify our convoy patterns, actions on contact, and response times - and exploit that as well. When that happens, we go back and reassess our actions and change our tactics - at the cost of lives. If AI tactics and plans are compromised or identified, the loss is the AI platform - not lives. AI can then be changed, by people and programming, to do something different.
For me, the bottom line is that AI combat systems will decrease both friendly and civilian casualties and reduce collateral damage.
"AI doesn't care".
But.....Soldiers do.
I agree that when we hit the limit of progression, there will be a hinderance, as in we will no longer be able to advance our tech, or we'll have to start stacking ICs like we do with processors now, at least until we can break that barrier with new tech. I don't see how it will spell disaster as you have stated at least twice now. All I can forsee is that our tech advancement will be stymied for a period. What do you predict for this disaster you speak of?