Mouseover healing macros - some problems

[Taika]

Mouseover macros give two main benefits:
1. You have half as many key presses to complete an action, since you only have to press the ability instead of clicking to target then activating the ability
Depending on the player and the situation this can more than make up for the minor lag delay, especially with OCD heals.

Except you're targeting the target of your next action while you're casting your previous one: if I have to heal someone after casting Stone, I target the healing target during Stone cast and queue the heal instead of waiting until the Stone is finished to target the healing target. You do have to make more clicks though, that is true (but since you're hovering your mouse to target anyway, it's not significant extra effort).

2. Allows you to heal as needed while keeping something targeted. Given how important healer DPS is in FF14 and how god awful the tab targeting in this game is (had
a hard time believing you could do worse than wow...) and how finicky click targeting can be, not having to reacquire your target after each heal is amazing.

I don't see how click targeting is more "finicky" than mouseover (I know I did more mistakes with the latter, but that's probably just me ) and I don't see switching targets for different abilities as a hassle, but I can understand why someone would prefer not to do that. I still don't think it would objectively lower your healing efficiency though.