Why does feelings matter in this case? It either dies or it doesn't. Their feelings are irrelevant. It's all about trying to keep you engaged in watching them.
What's really going to happen is Blizzard will nerf the fight and the boss will die late on reset day(they'll need a bit of time to relearn the fight because of nerfs).
There's no other option. No guild will kill it without Blizzard nerfing it. They're geared to the teeth as is, so reclearing the raid won't give them the dps increase. They aren't going to magically pull out the numbers needed.