Well, if you're fine with scholar being a 2nd rate healer, thats your business. But I prefer to main heal with it, as it is, you know, a healer job. And it used to be quite possible. Sure, some fights were a little harder than others, depending on aoe healing requirements, but careful use of eye4eye, sacred soil, and fey covenant, and good timing on whispering dawn, made it possible to fill that role. (even to solo heal A12s, which required a significant amount of group healing). As it is now, that is not even possible.

The key design change was that scholar was the least efficient healer, but that was offset by having superior mp recovery. Now, we have even less efficient heals, and even worse mp recovery. This is while both whm and ast saw increases in their ability to heal, and more importantly, mitigate incoming damage. Now its at the point where the potential healing of astro and whm is about twice that of scholar, and the mitigation tools that sch does have, don't even come close to making up that difference. I honestly don't think SE has anyone that plays scholar, they just had a brainstorming session to come up with ways to nerf it, and they came up with a dozen suggestions, and implemented all of them, without any consideration of how they would multiplicatively affect each other.

tldr> sch healing is broken, and needs an emergency fix. unfortunately, SE wont notice until people stop playing it.