The problem with saying those should be axed is that the examples you gave have charges. Cure spam is bad but I'm not sure this solution would be much better because they would spam one of those and run out of charges and since they don't touch the other healing abilities they wouldn't be healing at all.

I do think the game could try to offer some more guidance on this though not sure what. The sage instance that you go through as part of the sage quests was pretty good. If they could use that idea and extend on it, that might be one way the game could help outline how these abilities work together effectively.