I reckon a 4x DPS run is possible if you use the right DPSs, the reason the 'trinity breakdown' has happened is because the tanks now have so much access to healing, so if you did 4x SMN for a similar level of selfsustain, and offset who had phoenix out so the regen had more uptime I bet it's easily doable

also lmao at the idea that you're forced to GCD heal your way through ARR dungeons cos 'you dont have as many OGCDs', if you play SGE or SCH you don't need GCDs OR OGCDs, the incidental heal of Embrace/Kardia is more than enough to keep up. Real fun being a SCH, getting anything below Stone Vigil, and being able to literally /follow on the tank and afk every trash pull. Or maybe that's 'peak healer gameplay' for some people? After all, if the healing is entirely automated, it's not the healer player's 'fault' if a wipe occurs, so they don't need to worry about that crushing weight of 'responsibility'

And Abyssos was good and bad. Good in that it made healing a bit more interesting, bad in that it A: scared the 'less skilled healers' away, B: wasn't actually 'more healing' but 'more mit', and that meant we were reliant on hoping that the melee, who had so little reason to use feint in previous raids that some did not have it on their bars, would use feint or we all die (and then the healer is asked 'where shield idot'), and C: it only lasted as long as we didn't have gear, as soon as ILVL rolled in, the healing became a lot easier to deal with because it's not solved the real issue. We don't need 'more healing' as in it hits harder, we need 'more healing' as in it hits more often, so that we actually do run out of OGCDs to use.

However, due to SE's not-great implementation of Abyssos healing paradigm, the idea of 'more healing' is likely now tainted in the playerbase's mind, as they have seen what SE's idea of 'more healing' actually is. Everyone keeps asking for 'more damage' because it is the most obvious, most casual friendly (don't have time to do these extra buttons? then dont, and focus on healing), most old-content-friendly (doesn't require changing old content at all, whereas a new healing paradigm might require changing eg old ultimate healing patterns), and tbh, most devtime friendly as half of the stuff we're asking for is literally just 'can we have back 'old tool X' like we had in 'previous expansion'', so the code's already still in the game