Microsoft's customers depend on that information to figure out how to respond to Patch Tuesday. The reality is, system administrators will delay deploying a patch based on the details of the bulletin. When details aren't included, he won't install that patch. That is a big problem.
This month, Microsoft is only issuing one patch and we already know it's not one of ours. That means that our overdue list will keep getting longer and longer,
This patch is not meant to replace the forthcoming Microsoft patch, rather it is intended as a temporary protection against this flaw.
They are simply left in the dark and may ignore a patch that is super-critical to their environment. Meanwhile, the bad guy has spent the time to find out what was silently fixed.