As I've said before, when a Pope leaves theological questions up to the CDF; it reminds me of Pontius Pilate washing his hands. It is not Mueller, nor his CDF, which is infallible on matter of faith and morals.
Secondly, if you consider Fr. Z a more reliable source than Rorate-caeli, we have nothing more to discuss as far I'm concerned.
ebb tide:
Fair enough, and if you have problems with Fr. Z, then that is your problem. And the role of the CDF is to handle theology. Not every Pope is a trained theologian. Pope John Paul II left the hard theological questions to Ratizinger, for good reason, Ratzinger was a better theologian that John Paul II. That did not, mean, that John Paul II was less of a Pope. That is your reading your views into what the Papacy is or what you want it to be.
Francis is not a trained Theologian, his Graduate Work is in Philosophy, similar to Pope John Paul II. For the record, when Pope Benedict issued the Moto in 2007, Francis was one of the first Cardinals to set up a parish in his diocese to regularly celebrate the Extraodinary Form of the Roman Rite. I have also heard a Greek Catholic Metropolitan publicly state that then Cardinal Bergoglio respected the Liturgical tradition of the Byzantine Catholics in Buenos Aires. So I have not found Francis to be hostile to the various Catholic Rites in the past. Can you find evidence of that?
And back for the record, what makes Rorate Caeli more reliable than Fr. Z. Fr. Z is no dissident priest like the excommunicated Roy Bourgeois or any of the priests that regularly write for the National catholic [lower case on purpose] Reporter.