And it says that the lay Catholics is not allowed to disagree with the *official* interpretation of Rome.
No one, lay or cleric, is allowed to dissent from something that is taught in the most official manner and definitively. Most official manner has to do with the manner of presentation, and definitive has to do with using language in such a precise manner that it can’t be more precise. There are lesser levels in both areas that still have to be taken seriously.
“Inadmissible” is not the sort of term that makes for a definitive statement, because, in terms of moral theology, it is a neologism It sounds to me like the language of a counsel rather than a command, which makes reconciling the statement with the previously existing teachings (which we also need to hold) easy enough.
“Intrinsically evil” is dogmatic language.
Counsels pertain to how to behave in particular concrete circumstances—and while counsel is worth weighing, unless the person offering counsel is actually present enough in the circumstance to be aware of all of the particulars, the conscience of the person on the ground is the ultimate moral judge.