I clicked the link to the bug tracker and saw this reply from MS team:
"We are going to proceed to make a release today and test with customers."
They test their releases directly with customers? What happened to the alpha and beta testers?
They're called customers =)
Of course they won't release it 100%, they'll do a limited rollout and see if something blows up.
I know bean counters, software managers and IT people love to use the word critical for nearly everything, but in the grand, and even medium scheme of things, there is nothing critical in Teams. We aren't talking medical equipment, nuclear stuff or some simulation platform to make sure buildings are sounds and will not collapse.