What do you want? My impression was you wanted encounters that negate the trinity within the constraints of Final Fantasy XIV's established systems. Yes, that would leave DPS' jobs mostly intact.

Would a chicken-run encounter suck more for a hard casting Black mage than a Summoner who can rely on DoTs? Absolutely.
Would the tryhard community shun suboptimal DPS, no matter how the encounter is tuned? Eeeh they already do, nothing new here.

However, and this is where the "I do not expect DPS players to understand" comes from: you would still get to play your role. Hitting stuff on the head to make it go "ouch".

If you abandon the trinity for any encounter, that is ALL that remains. W/o healing and tanking, what is there to do but kite and DPS?
I have a problem with that kind of gameplay, because I like the segregation of roles.
I like being the ones that heals people. I played the "hit stuff till it dies" role for 10 years in another MMO. Was fun but now I want sth else.

PS: I know that healers and tanks already have an absurd fixation on DPS in this game, esp in raiding. While I like to throw a stone or two when no healing is needed, I do NOT want any sort of shift towards more of that (seriously, a 3 button DPS "rotation" bores me to tears and the mashing of the stone button hurts my hands).
Honestly: esp in easier content, there is already too little to heal but SE is apparently too chicken to address that, lest all the baddies start whining. >.<