At the end of the day, I think healers just want to have a bit more to do in combat/have more meaningful decisions. It can be by using their heal/shield gcds more meaningfully, or maybe by having more damage buttons to use when they're not healing. Or both.
But right now, they don't have either, so it just becomes 11111 90% of the time...
JP posts are always welcome, don't worry about machine translation
(Western players also tend to think
all roles should be exciting- not "exciting dps/simple healers")