Liberal Authoritarianism and the Traditional Latin Mass

Let me begin by defining my location in the Liturgy Wars. I am a Novus Ordo man. I don't agree that the Roman Missal promulgated by Pope Pius V in 1570 entombed the Roman Rite in ecclesiastical amber, such that it forever remains (as one traditionalist friend recently put it) "the most authentic expression of the Roman Church's lex orandi [rule of worship]." If that were the case, then the 1962 Missal of John XXIII, which is used in 21st-century celebrations of what is typically called the "Traditional Latin Mass," is less than fully authentic, as it incorporates changes in the liturgy promulgated by Popes Pius XII and John XXIII.