Yes, that’s why some people don’t like the flamers because they can very much hurt more than they gain for the team. It’s strange and it really should’t be but denying temp hp is basically the same thing as using healing for no reason as long as the situation wasn’t dangerous. It’s also another point why melee careers have to play extra aggressive in a range dominated party.
Temp hp on kill/crit changed the game from protecting your health to refilling it.