If healers had a 3 Button GCD Combo like Tanks?

[Ramiee]

What is the problem with overheal, exactly? If you're not losing damage from healing more than you need to, what does it matter if you heal something that they could have survived without?

Depends on how the game is designed but in most MMOs it's bad because it's:
1. A waste of resources
2. A loss of damage

There are some classes and jobs in MMOs where this isn't that much of a problem, Sage for example you don't worry about overhealing with Kardia. It's just kinda an issue on WHM because of the use of GCD which throughout all of FF14s history has been prioritised for damage for healers.

"After using resources, you get access to a nuke" is a fun design and a lot of why lilies are good is that you've got a ton of flexibility on when you use them and when you use your spender.

It is fun but comes with the problem of people wasting heals on it for damage gain. It's why having an rng component on blood lily makes it work, you aren't guaranteed a damage gain from wasting lily heals so you won't waste them. It's not like how shield swipe on paladin worked where it was a damage gain to have a chance of procing it so standing in AoEs was worth it for personal damage. I think WHM is well designed in this aspect.

I think Scholar in particular would need a rework in order to change more actions to charges, but I also think Fey Blessing, Fey Union, Dissipation, and Protraction are not well designed. Dissipation is at least strong, unlike the other three, but it's a far worse offender on "all actions become DPS actions if they are capable of being used for DPS" than using the design philosophy of lilies more broadly and on more healers.

I disagree with Dissipation, it's well designed and has a purpose in the kit even though I personally don't like it, the turning it into DPS for ED is really annoying optimisation thing but I do agree that it is heavily encouraged especially in the opening. Protraction is up for debate but fey blessing and union are bad.
I don't think all healers need lily's like damage refund system, it works well on WHM because WHM identity is around pure healing completely. SCH having damage tied to its pet or it's dot back work better imo.
But yeah 1-2-3 don't really work on healers because they're casters.