Quote Originally Posted by AnotherPerson View Post
I'm okay with soft enrages like in M4's ending phase. Where if you take too long, the boss will start ramping up their damage consistently to the point where healers will eventually run out of resources and the party cannot continue. It exists in old fights like Nidhogg too through Akh Morn increasing stacks each time. It gives fights some pressure and helps with storytelling for bosses that are pushing you to their limits.
I would also like to imagine that such soft enrages help convey the fact that healers are not bottomless, magical fix-it machines.

Even my bestest self should not be able to keep the party alive indefinitely. There should be a point at which I can reasonably say, "The tanks and DPS need to do better."