Unfortunately, I don't remember much of the discussion but it was brought up at one of the sessions with a panel of hosts at SHARE St. Louis. As best I can recall, they said it was an attempt to remove outdated documents and some other changes in an attempt to improve user experience, most of which have been reverted back, but not all. And they made a point of requesting people inform them of further issues so they can be corrected.
It was the most contentious discussion I witnessed. Several attending were obviously very upset and doubtful it will be fully corrected.