It certainly wasn't the traditional Latin Mass either! I'm sure you know very well that a New Mass was approved in 1964, one that closely resembles the official New Mass of Pope Paul VI. Fortunately it still had the Latin Offertory and Consecration, so the heart of the Mass was untouched. But all the other parts of the Mass were translated into the vernacular and open to "inculturation" and experiments to encourage the "full and active participation of the congregation" -- precisely things like Hootenanny Masses.
So I hope you weren't deliberately encouraging the false impression that the Mass being travestied during the period from 1964 - 1967 was the traditional Latin Mass.
Compare the 1964 Missal to that of 1962. The only difference of any substance is the allowance of the vernacular in lieu of any Latin for certain readings and prayers. The 1964 Missal is universally acknowledged to be the same as the 1570 Missal, the only difference being the allowing of the vernacular. It was however, the same words. And that was the Missal used in the first Clown Masses. There is certainly nothing special about the Tridentine Missal that protects it from abuses like that.