Sorry, I just think a show needs to be going somewhere. There needs to be some overarching story arc, mission to accomplish, mystery to solve. Damon Lindelof, of all people, should have figured that out by now. 'The Leftovers' doesn't seem to be going anywhere but more bouts of doom & gloom. For me, that's not enough. For others, it may be.
FWIW, I'm still watching it, hoping I'm wrong and something interesting starts to happen with regard to what caused the disappearance and where those people went. It's still early. If they never go there, which is essentially what the producers have said, the struggles of the remainders - especially with these characters - are not enough to sustain a show. Not for me, anyway.