Absolute stercorum equii.
After rereading what Francis said, in all fairness, strictly speaking he is not telling anyone to violate the rules of fast or abstinence, either traditional (which he surely didn't have in mind) or Newchurch. Even under the traditional interpretation, meat is not absolutely forbidden on days that are not Friday or Ash Wednesday, and Sundays are never a day of fast or abstinence. He spoke of Lent in general, not necessarily Ash Wednesdays and Fridays. Even under the traditional rules (which, as I said, he surely didn't have in mind), you could take meat at the one full main meal on any days not Ash Wednesday or Friday.
But, as with so many things he says, they can be misunderstood even if, strictly speaking, they are not heterodox or dismissive of Church discipline. Popes should not be confusing. They should just clearly say what's on their minds.