Please don't take my (or anyone's opinion) as fact. However, let me expand on how I got to that opinion.
First and foremost, the issues on live sound like the same kind of issues non-official servers have, which is pretty disappointing to someone who has been playing/doing bad stuff to WoW with a lot of fun for many years (and hopefully more years to come). These issues are things that players reported or issues that QA would have easily spotted (meaning devs do have note of it, but just didn't get to it, +1 on rushed signs).
Secondly, we seemed to be way more on the bleeding edge of builds compared to other WoW alpha/beta tests with stuff often being half implemented, basic issues that wouldn't have gotten through their normal beta level of QA and a lot of files being added that aren't even used until a few builds later. The whole "Blizzard is a few builds ahead" did not seem to be as prevalent as it was in the past. This is another sign to me that they wanted to get stuff "out there" faster, in the hope of catching major issues quicker.
DX12 was unstable up to a few weeks ago and seems to not have helped performance in any way, which when properly implemented (with enough time) it would have. It being disabled on DXThe communities feature wasn't in a working state until a few weeks ago either, which is pretty obvious now (on a semi related note, they're starting testing of it again soon (on live) and
holy fuck its Bornakk).
This and things people have already brought up countless times at this point lead me to believe it was rushed by people who couldn't care less (likely above Ion, no matter what you think of him he probably didn't want this either which we'll hopefully see him talk about today).
Sorry for rant.
Also @
Thenatural and @
rda take it to PMs or something.