End of Missa Normativa

The papal directive concerning the Missa Normativa is a pastoral one. It does not affect all the Church but only the Latin part, so that we may see the Pope in this matter acting as Patriarch of the West.
One could, perhaps, then criticise the directive as one of a patriarch rather than one of the Pope, It seems to me worth mentioning that Pope John VIII (872 882) encouraged the mission of the two saints Cyril and Methodius among the Slays, and approved the Slav liturgy. But Pope Stephan (885-891), in a letter to the Duke of Moravia, forbade that liturgy.
Shall we say that one of them was wrong? Could we make some other comment, e.g., that the orders were both opportunist? Could we say that the whole affair shows us what we may think of the Missa Normativa — a form which fria. be destroyed after a possible Vatican III?
H. W. J. Edwards
220 Rhys Street, Trealaw, Y Rhondda Fawr.