Per the article I posted, the Church’s disciplinary infallibility only extends to positive, not negative, laws (and even then, only concerns universal, not particular, laws).
Yes, it needs to be said that Universal Laws include laws meant to remain in force till the end of time - the law of Quo Primum for example.
That's to be expected after having been poisoned by some of the false principles of R&R. For you it matters nothing what a Pope commands and teaches; you just do what want anyway. So for you this means something, when it should mean a lot to someone with a true sensus Catholicus.
This forces R&R to simply reject the Disciplinary Infallibility of the Church in principle, because the argument that it was never made mandatory has just been completely scuttled.
As I told Lad before, he has it all backwards, he holds the false, classic NO principles, not R&R:
Since the conciliar popes have commanded nothing and taught next to nothing we can obey without offending God, all we *can* do is remain alert and watch for (albeit do not expect) a command / teaching we *can* obey and embrace *without * offending God. This, in addition to praying daily for the pope, is what Catholics, faithful subjects of the pope, do, and have done since this crisis began. This is the classic R&R position in a nutshell and I wish you would bookmark it.