This article from 1999 by Fr. Joseph Fessio, is one of the finest looks at what the fathers of the Second Vatican Council (1962-1965) actually meant when they wrote and voted on *Sacrosanctum Concilium *in1963. Every priest and bishop who celebrates the Roman Rite should be required to read it!
No doubt, since the Mass of Paul VI was introduced in 1969-1970, the vast majority (maybe 99.9%) of all parishes do not even come close to celebrating the Mass as mandated by the council. Am I wrong?