Why encounters with a difficulty slope are bad

[Magis]

I prefer soft enrages, myself. With a soft enrage, you can sometimes juuuuuust squeak in a victory, the healers struggling to keep people standing and everyone pouring everything they can onto the boss in a last desperate burst. It feels so good when you win like that! With a hard enrage though, the boss just says: lol no and wipes your entire party with one fell swoop. It's boring. :|

That is better indeed. TBH I dislike FFXIV's over use on no-win scenarios. If I die I'd rather it be because we screwed up and couldn't recover rather than the boss' script going "kill everyone". Even as a practical idea, it's like... why does a boss all of a sudden start one shotting everyone when it could have done it before? Makes no sense. If a limit has to be put, I'd rather it be an endurance one. All resources have been drained (casters out of mp, tanks can't get healed, etc) and the boss just wins by attrition. I don't think that is possible though in FFXIV since everyone can regen their mp pretty easily. Again, at least there was a failure on the players rather than some script.