I think the title here pretty much says it all. I think that having this adjustment would help other jobs with healing capabilities see more action such as RDM and SCH and also alleviate that condition when you're 5/6 and all you need is a healer but no WHM wants to come for the party. Have it scale with the Healing Magic skill and MND so that way it's not overpowered at lower levels and as a subjob.