I don't see why combo consolidation has to be all or nothing. I've always pushed for the option to combine your combo into one button while the job is designed with the idea that the combo is one button in mind.

That way, if people find the kit too bloated, they can consolidate the combo. But if someone wants the versatility of being able to reset their combo, they can too.

That said, a 1-2-3 combo addition to healers would be the laziest thing they could do. That would 100% be bloat for the sake of bloat.