Something can be quite Catholic and yet be conducted illicitly. The Novus Ordo prayer service is neither. The Novus Ordo is not a work of the Church, it therefore cannot be a valid Catholic Mass in the true sense, and it is always a sacrilege.
The Catholic Church cannot validate sacrilege upon Her altars, nor a mockery of the Sacrifice of Christ.
A benign attitude toward the Novus Ordo and the false council does not alter those realities.
Giving the faithful the idea that a false ritual might be valid or somehow legitimate might lead them to erroneously attend such a sacrilege, believing that it is Catholic or allowed.
That's your opinion. Bishop Williamson believes and speaks otherwise.
No FF, +Williamson does not believe or speak otherwise.
He starts out saying her attendance at the new mass could be scandalous and that it is his personal opinion that he doesn't think the new mass is always invalid - and he gave his reason - because there is nothing in the texts of the new mass that makes it always inevitably invalid if; a) it is a priest, b) who says the words worthily.
This is true - validity / invalidity is impossible to prove and to see a trad go to a new mass could be scandalous.
He then proceeds to talk about how the new mass is clearly sacrilegious, bad, to be avoided and etc. ad nausem.
He then explained his opinion on the subject as; "Do whatever you need to nourish your faith".
I know of many - and even many (most?) here and on other trad forums today who would have never found tradition if they never went to the new mass. How many people left the NO and came to the true faith because after "X" years - even decades, they were *finally* disgusted, suspicious, fed up, sick of the bs, etc. or were in some way prompted to look into tradition and find out for themselves that they needed to leave the new faith for the true faith?
Certainly he could have spent much more time further elaborating and speaking against and condemning the new mass - and I wish he would have - but I do not see that 15 minute snip demonstrating that "Bishop Williamson believes and speaks otherwise" in regards to the new mass.