It has to be, but i wish it was reflected to the team hitter. Sadly community wouldn't approve, but i'd like to know what would be wrong with it: you team hit, you pay. And don't talk about "realism" or whatever, i please ask you to find good reasons why the reflected team hit isn't fair or enjoyable. also people would pay more attention.
Because it stuns the person you hit, and stuns you as well when you take the damage.
It's fine the way it is, I never liked guys that gave reflective FF damage. Try not to hit teammates, but sometimes shit happens.
It's perfect the way it is.
