It's not beta software.
The GM is supposed to be the finished product with all of the problems worked out.
Many people (myself included) would not use an alpha or beta release on their device, but would use the GM version. That means more people could encounter this issue - particularly as the GM is intended for eventual public consumption and as such can generally be used without an Apple Developer Account/provisioning profile.
If people have reported a bug to Apple like this and they've chosen to ignore it, that's a big deal.
I'm sorry, but it is BETA. Until it is made public a gold master build is simply a BETA build that a software company wishes to test in consideration for a public release.
And as we saw here, that beta build failed some tests, requiring, yet another beta build for final testing.
What I would hope people get out of this is that unless you have a public build, you will always run the risk of the software being buggy. And to complain that a test build is buggy is simply ignorant...and to complain publicly is not only bad form, but a violation of the NDA that was signed.