I'm not criticizing MS, just pointing out that whenever they issue a new release, they don't list all the known bugs, just a very short list of "known issues".
I've had to revert back to the AU because of bugs that occurred on an almost daily basis, to do with the taking/sharing of photos. This persisted across RS2 builds, and the issue does not seemed to have been acknowledged so I have no reason to suspect it's been fixed in the latest build either. I am willing to jump back in to the fast-ring builds at some point, other bugs likely wouldn't bother me so much, but I take and share photos every day at work and when this fails (which it has done in several different ways recently), it causes me a real problem, I don't have time to keep rebooting the phone to clear the problem every time.
So, to end my post, I am sorry you feel I'm criticizing MS, but I do feel the truth is being stretched a little when they list only one known issue. Not that the AU doesn't have issues too though, I've experienced a couple there too in the last few days, but this was nothing to do with the above, though there is still an issue present with sharing photos via Outlook, but not a show stopping one.