More on Warlocks in the Expansion

[Drasca]

The problem that I see is that it's possible for Hunters and Warlocks to efficiently solo elite mobs that other classes must group up in order to farm efficiently.

That really sounds like a class feature than problem to me, as pve's fairly unbalanced all together. . . but given how satureted pve is with other opportunities not an overwhelming feature. Grind solo, Grinding with others is still faster. Grinding Alliance/Horde can reward better. Raiding may take most time. Etc.