I have a gut feel that if devs added new content that forces healers to be more busy healing, using both GCD and OGCDs to heal, the playerbase is going to complain about not being able to dps as a healer.

It seems like they went down this rabbit hole and added way too many OGCD healing options for healers due to player demand, and it reached a point where healers are dps 80% of the time, without an interesting dps rotation because they have too many healing & support buttons already.

I come from FFXI during its early era, where healers just healed (occasional Dia & Haste), and struggled to keep up the tank due to how much dmg was incoming vs low healing potency. Then in WoW for the first few xpacs, again, healers primarily healed (sometimes CC) almost non-stop due to high incoming dmg. Started FF14 not long ago, on SCH, I didn't even cast any healing skill until level 41+ dungeons because Fairy auto-heal was enough. Nowadays it's mostly OGCD healing, so I'm spamming Broil unless someone messes up. It doesn't feel like a healer at all, more as a weak dps that heals sometimes.

Is it a problem? Not so much, I still enjoy doing the grp content. But I could see how its a turn off if you had to do this endgame all the time, you sign on to be a healer but end up being a meh dps.

IMO, it should actually be the reverse, healing via GCD and OGCD for team support & dps, with cooldown & charges on abilities to gate-balance how much dps healers should be able to throw out to support the pt.