(Spoilers) Why are dungeons so under-tuned when...

[Acidblood]

SE frequently make the excuse that dungeons are easy because they are 'story mode', or that they don't want to put 'pressure on the healer'. And yet... once again we get a Trial - at level 83, and forced by the MSQ - that, while not on the level of (pre-nerf) Shinryu, I'm sure more than a few groups have had difficultly with.

Now don't get me wrong, I do NOT want said trial to be nerfed (though some less disorientating markers wouldn't go astray). I simply want to know why it is OK for 'story mode' Trials to pressure the healers and cause wipes due to 1 or 2 players not knowing the mechanics while dungeons must remain essential wipe-proof?