It's not that healing requirements are low. It's that the majority of it is taken care of with ogcds and regens. With the news of healers being reworked entirely, don't be surprised if this goes away and forcing healers more into that role, and further away from DPS support.

That's not to say that their DPS can't be made more interesting, but I'd put money I don't have on wagering that healers essentially being a DPS with healing capability is not the intended vision they had with them.