@Larry
From what I've seen, HNS with FF isn't HG for a minute. You would know if you actually played. More often than not, most people camping together end up dying and maybe there will be one guy who tries finding others just to kill them. Honestly though, that point doesn't matter.
The issue at hand is "the blue teamkill rate is high on those LR's." If a Blu happens to teamkill on HNS with FF, then maybe think of why it happened. I get accidents happen and that the average Blu IQ is about 7, but that shouldn't mean we should ban this type of gamemode entirely. Removing creativity in an LR because a Blu might get teamkilled by someone who probably should take more caution next time isn't necessary. Plus, more often than not, the Blu getting teamkilled gets respawned and everything is fine.
This is just my opinion based from my experiences. Thanks.