@noctis, great summary post and glad to see you back. i agree in that 1.18 clearly separates those who are able to adapt and evolve their playstyle from those stuck on aoe curespam and mindless dps. if it doesn't work, try something else. success is 99% failure, man.
i find that, like you, the discovery of teammates who are willing to accept change, move on, and better their playstyles has increased the bond and friendship between us, promoting greater cohesiveness and teamplay, which is what, at the end of the day, a mmo should be about (at least to me). for those who dislike change, i have and will continue to issue words of encouragement and support.
with regards to enmity, it may seem wonky, but after every lost battle, stop for about ten minutes and think about why you wiped. i promise, you will learn more in these ten minutes than if you immediately fixed your gear and re-entered the dungeon. and by 'immediately,' i mean after the cooldown.
in the end, batraal, suck it. we got your number and we're going to continue farming your ass today.