I agree with GS. They dropped a bomb on our guys, we retaliated. It's all even right now. Let's keep it that way. It is not about backing down. It is about being reasonable in the face of conflict. That is my two bits.
I'm not saying we should go on a forward crusade. Our stance was black and white. We listed our allies, we flew operations supporting them. When weapons were dropped on them, we attempted to deconflict prior to shooting. My stance is, as you said, we're even, and we should continue our operations, as we have been doing, barring aggressive actions from enemies.
GS is advocating we CEASE our standing operations in support of forces we support against ISIS. THAT would be backing down out of fear.