I think that if someone is tKOSed for firing on you in an NFZ, you should be safe to engage them yourself without retaliation from the SF. It would discourage further abuse of kill-and-run by empowering the attacked player to return fire, increasing the risk for the agressors.

Yes. This is very counter-intuitive. If it wasn't for vets screaming "Don't shoot!!!!" I certainly would have upon being attacked. It "feels" like it should be OK.