In Defense of Dawntrail's Difficulty.

[Riotas]

No one is forced to do the MSQ/play FF14, everyone can decide what they want to play, and there are lots of MMORPGs out there

Having said that, I think some helper mechanism for people who find the MSQ dungeons too difficult still makes sense.
I read through some of the comment of the 1000000 threads about dungeon diffuculty and I have the suspicion that most of the people who complain about the difficulty are
- older gamers
- gamers with some kind of disability/handicap
- gamers with low self-confidence/anxiety

Those people neither have the reflexes and learnability of young healthy people nor the mental resilience against "dying very often", it just stresses them out.
That means it's not their "sheer unwillingness to learn, improve and engage with the games mechanics at a fundamental level" - they do want to learn, but their bodies and brains say no.
The controversy came about because they identify themselves as "average casual player", but they're actually not the typical casual player (not meant offensively).

So I would suggest some easy-to-implement barriere-free mechanism to aid those people but without changing the difficulty for the normal healthy player.
The easiest way I can think of is adding a voluntary echo option for duty support in MSQ fights. So if you enter with Wuk Lamat + Scions, you still see the same mechanics with the same speed, but you won't die so easily.