Not a healer but responding to a specific comment:

Quote Originally Posted by Melichoir View Post
Imagine how frustrating it would be to be in a group where you have to interrupt your dps rotation and skills to do resses and GCD healing?
As a Red Mage main, I've literally been in that position before (mostly in dungeons, though I have had to rez mid-combo in raids before as well). Maybe it might be considered a different scenario because I'm a DPS and therefore it's not a "regular" expectation, but I didn't find it particularly frustrating to break my burst combo to Vercure the tank, rez the healer, and keep Vercuring the tank until the healer was back up.

Would it be frustrating if it was a regular thing expected of me and it continued to break the combo the way it does? Yeah, for sure. But the post above the one I'm responding to by Supersnow said "...with designs in place that stopping the rotation to cast succor doesn’t break the combo...", and I can't imagine it being very frustrating in that case. You delay the damage to heal and/or rez, then go right back to the damage combo.

In terms of a situation where it just messes with the rotation in general, and not specifically burst, it's even less of an issue. I'd even say that I enjoy the occasions where I'm allowed to have fun "healer" moments as a Red Mage!

Obviously this is the perspective of someone playing a DPS job, and not the same as a situation where healing is my main role, but hopefully it's somewhat relevant as a response to this point.