Damn mate I just can't agree less with what you are saying to be honest.
I think you misunderstood some scholar mechanics.
First of all scholar wont pull out amazing numbers on your screen, that doesnt mean their heals arent great. For example a single adlo will pull 800 + 800 shield, you add an average heal from the fairy (~700) it's already 1500 healing done and 800 shield. Thats not counting crits.
Scholar single target healing is just much stronger than whm; you pull the same numbers as a whm with mitigation + 3 off gcd 25% hp heal available every minute. Not even talking about the mana.
Concerning solo healing and stuff like that, the only fight scholar was behind whm was clearly ifrit EM, rest of 2.0/2.1 fights were easier or as hard to solo heal as sch than whm.
My point is not to say that scholars are superior to whm or anything like that. You need both of them to progress quietly in coil, just correcting some things I was not agreeing with.