Extraordinary Mission

Likewise, St. Athanasius when expelled from his See and excommunicated by the Pope… (p. 156)

Athanasius was driven out of his church five times, but not by the Pope. And the Pope never excommunicated him. The Pope(s) of Athanasius’ life were his backers.

One must keep to the limits of the requirements really imposed by the state of necessity (p. 157)

Seems like consecrating one bishop answers your case of necessity. So… four?

he did not consecrate bishops without jurisdiction over a diocese, and thus did not set up a parallel Church or hierarchy (p. 158)

Perhaps no hierarchy in 1988, but today?

An SSPX chapel has hierarchy above it: Priory, District, and Superior General, roughly corresponding to state, national, and world-wide levels.

Combine this hierarchy telling Catholics there is no obligation to attend a Novus Ordo AND if they have to go, like for a wedding, do not receive communion, and that is a separate hierarchy.

Citation: Crisis in the Church episode 25

Father Robinson: Yes. If you’re aware of how the Novus Ordo was constructed to obscure Catholic teaching, you’re obliged not to attend.

…

Some traditional Catholics ask about attending Novus Ordo Masses for family events, like weddings or funerals. Should they go?

Father Robinson: In those cases, you’re not attending to participate in the Mass but to fulfill a social obligation. You can go, but don’t actively participate—don’t receive Communion, read lessons, join the choir, or distribute Communion. You’re there for family, not to assist at the Mass.