Originally Posted by
Nagassh
No, but it's certainly an indication of something. Warlocks have generally been one of the least player classes in the game, not just arena.
That doesn't neceserily mean they're underpowered, but it is a pretty good indicator that they may not be fun, and lack of fun can certainly stem from poor / stressful pvp play, since warlocks rarely struggle on the pve front (some previous tiers often had them having to work twice as hard as other classes for the same output, but that's not necessarily a bad thing, since at least it was engaging).