They basically are saying the same thing. But CMA has added to it today per reports, and essentially threw in a requirement for a new deal to be presented to them.
That might not mean much at all. There could be language allowing small changes to the MS / AB deal to be made on an expedited fashion without shareholder voting, with CMA already planning a fast track review of only new terms that they plan to approve.
But it also might mean that CMA altered a deal, or perhaps I should say clarified what they were open to. If they are literally saying that a new deal must be presented and reviewed, and MS did not realize the existing block would stay in place because this would be a new process, then oh boy. Hang onto your butts.