I think I have less patience overall, especially with healers / co-healers.

The "casual" content is much easier than it was before.
Remember when Titan was a big progression blocker? Healing was better because as a SCH, we had WAY more importance.
You could not pass Titan without a good SCH, point.
I liked that sense of responsibility and I needed to know the fight by heart and that was a regular fight, not a raid.
Healing was tougher and MP management really was a thing.

Now healing is easy, you can YOLO everything, your skills are overpowered and your mana near limitless.
I cannot stand seeing AFK healers. I now try to politely encourage healers to DPS, especially in higher level dungeons.
I don't think you should be at lv80 and not using a single DPS skill.