Sounds like you've got it taken care of then. Just because something looks good on a stream doesn't mean it is.
So from what you just said, It looks like misc damage tuning needs to be done over several trash mobs and boss adds throughout the dungeon. Timers on Lynx are messed up badly and so is his cleave. There's a scripting issue with the mob at the end of the eagle gauntlet.
Relatively speaking though, ZA is still in much better shape than BT was during the PTR tests, or even the first month of release. It looks better than kara is now, better than hyjal is now. I stand by the "amazing" comment. Damage tuning is by far the easiest thing to do.

