I never viewed RDM as a traditional support job, which to me, screams a significant FFXI bias. Could its XIV incarnation be better? I would certainly like it to be, but I would also feel nauseous if that somehow manifested as a resurrection of the FFXI Haste and Refresh cycle while putting WHMs out of a job. Though, just like XI, I feel XIV's melee side needs help, and not just as a gauge spender for a few seconds in a rotation.

That said, if the intent is to push more niche circumstances into the encounter pool, you have to eliminate the time gating on endgame gear acquisition. This is actually why I'm letting my sub lapse next week until a decent amount of new story content hits, as I loathe that we have all these jobs we can play and level, only for current systems to effectively force a "main" choice. And if it turned out my "main" choice happened to be garbage for 6+ months of endgame, and thus never desired or invited by peers, you can definitely bet I'd pack my bags for that reason, too. Something I doubt I'd be alone on, as well.

Something to keep in mind when comparing XIV to XI is that XI was also a slower game, and could further be solely operated via keyboard. To an extent, this is actually something I do miss, but I'm not ignorant of how much variety XI encounters also lacked. There's probably some middle ground to be found here where things aren't so much about optimal rotations and jumping rope, but also not just waiting for your TP to get high enough for a WS or hoping you don't get insta-gibbed by an HNM AoE.

Otherwise, I'd be okay with dungeon randomization more akin to Diablo than PotD here. Creating a tile set, designing enemies for the area, randomizing packs, having patrols, scattering treasure you want to find, chancing upon niche spontaneous objectives that give loot, and encountering bosses in non-sterile locations would go a long way in curbing some of that ennui for me. Sure, I'd probably pick Trusts more than real people if I had the choice because DPS queues will forever suck, but I can only imagine it'd change party habits when you can't outright predict what's ahead.