Tanks went through a pretty massive overhaul for the xpac, and they obviously had other jobs to work on that didn't get done in time. "Screw those other jobs and work on tanks!" is basically how some of these comments come off.

If all anyone can come up with is little nitpicks here and there then they've done a fairly decent job IMO. Everyone wants a little more seasoning, a little extra sauce, but the dish is perfectly edible as prepared. Chill.