Warrior gets a pretty nice boost to AOE WS using Fell Cleave. But for exp parties, 2hour abilities aren't really what you get invited for. For NM on the other hand (and I'm not talking about weakling Abyssea seal NMs), jobs get invited to 2hour for various reasons. SAM, DRK, PLD, THF, SMN, RDM all come to mind.
Considering that one of the biggest complaints I hear from SCH is not being invited to do stuff, adding a powerful and unique ability to assist in zerging stuff down shouldn't be dismissed as useless. But I have a feeling that short of obsoleting other classes (even if boo hoo you can only obsolete one class at a time), some Scholars (not all, but some) will never be happy. I'm not sorry your class is no longer better then White Mage at curing or Black Mage at nuking. I'm also not sorry your class doesn't have the same ability as either of these classes, and no, only being able to be the same as one of this classes at a time due to Light Arts or Dark Arts does not count as balanced either.
If Brave and Merton are both significantly powerful, prepare to see Scholar get a unique position in endgame content as the premier zerg and zerg support class, in addition to its other incredibly potent roles it already has. Boosting the usefulness of Scholar's unique abilities and giving it more unique abilities is definitely the way to go for a more powerful and unique Scholar.