I didn't bring Vatican II (which, strictly speaking, is a separate issue from the Novus Ordo Missae) into it, but it's a fair observation, so I'll rephrase it, what if neither Vatican II nor the Novus Ordo had ever happened?
My point is the same. Societal change would still have taken place, the sɛҳuąƖ revolution, the Pill, people moving to the suburbs, living cheek-by-jowl with non-Catholics, wanting to marry them, going to college in huge numbers, Vietnam, the women's rights movement, the list goes on. (Or you could just listen to Billy Joel's "We Didn't Start The Fire", which is about as good a litany of events from the 1950s through 1980s as you could ask for.) If the Church had been there, unchanging, the missal of St Pius V, firm doctrine, firm rules, firm morality --- the world would still be on the other side, singing its siren call, "come along and follow me". Even in the 1950s, fissures were starting to form, people were starting to rebel, and it was like a pressure cooker that exploded, oh, around the time of Vatican II, Humanae vitae, the Novus Ordo, and so on.
Don't get me wrong, I'm not advocating for the Novus Ordo or for Vatican II, I'm just wondering how much of a difference it would have made, given all the confusion that was going on in the larger society.
As a side note, we might look at the Eastern Orthodox. Did their adherents stand pat, resist the larger society, and retain traditional faith and morality en bloc? Or did they just go with the larger society as well?