CathInfo.com

Not having authority at all and abusing authority are like night and day.

From the link in the OP:

Through the teachings of St. Robert Bellarmine, Cajetan, Francisco de Vitoria, John de Torquemada, Palmieri, St. Thomas Aquinas, and other great theologians, this video examines the Catholic principles of papal authority, obedience, and infallibility.

It shows how theology distinguishes between the obedience owed to the Pope and the absolute obedience owed to God, and why all these eminent Church theologians considered the possibility of legitimate resistance to certain papal decisions.

The objective is not to challenge the papacy, but to better understand, in the light of Catholic doctrine, how the Society of Saint Pius X positions itself in the face of the current crisis in the Church.

Not having authority at all and abusing authority are like night and day.

Absolutely.  So, it's one thing to look at an isolated decision or command to be disobeyed, but entirely a different matter when the entire body of the Magisterium are so polluted and the Mass, the Public Worship of the Church, and things get so bad that we're REQUIRED to refuse submission categorically to the putative (doubtful) Pope in order to profess our faith and to save our souls.  I think that people easily get lost in trees of infallibility and miss the forest of indefectibility, where this Conciliar Church is something that substantially alien to the Catholic Church, as +Lefebvre had often said, but such substantial change would be tantamount to a defection of the Church.

For all that the classic R&R claim that they obey these Popes except when their consciences prevent them from being able to ... I often ask them to tell me the last time they obeyed something that Bergoglio or Prevost taught or commanded.  I've never gotten anything more than crickets in response.  In point of fact, the R&R who claims this do in fact categorically ignore the V2 papal claimants ... which they absolutely should not be doing given their purported principles.

Father Chazal actually came up with a variation on the sedeprivationist position wherein he holds that we can categorically "ignore" these heretic Popes.