Thank you for the link. I agree that the explanation given by the author of the Youtube feed is High Petrine. I am not certain if the author is Eastern Orthodox - if he is, this should not come as a surprise, because the High Petrine view is held by many within Eastern Orthodoxy.
The feed claims that there are three things the Pope must do with regards to the papal dogmas of V1 before unity is achieved.
I don’t have time right now, but I can definitely affirm that those three things are based on a misunderstanding of what the Catholic Church teaches about the papacy.
I will demonstrate this by comparing the words of the author of the Youtube feed with statements from Vatican 1.
Blessings,
Marduk