The liturgical trials and tribulations of the Latin Church should, I rather think, be traced back to the Nanny of Archbishop Pietro Marini. She should have induced in him a greater respect for telling the Truth.
(Pietro Marini should not be confused with the Master of Pontifical Ceremonies, Guido Marini. If you want a handy mnemonic, remember that Guido Marini is the Good Marini. But Pietro ... no relation ...)
Pietro was ... is ... a great admirer of Hannibal Bugnini, facilitator of liturgical corruption and disaster in the decade after the Council. Bugnini was the undertaker who nailed up the Roman Rite in the three traditional papal coffins. The poor thing is still struggling to get out.
In A Challenging Reform Realizing the Vision of the Liturgical Renewal, Marini asserts (page 141) "The fact that four Eucharistic Prayers were approved was consistent with the early Roman liturgy, which actually had used several anaphoras" ['Anaphora' is a tarty Greek/Academic term for Eucharistic Prayer; what you and I would call a 'Canon']. I quoted Mgr Knox on the word 'actually' quite recently; he asserted, you may recall, that the word commonly denoted the imminence of a lie.
Perhaps it wasn't a lie. Perhaps the Early Roman Church had 2,943 Eucharistic Prayers. But if it did, then, as far as I know, no vestige, no mention of them has come down to us. Tacet Clio.
Perhaps the fib is not Marini's. Because his book, published by some institution at some place called Collegeville, was 'edited' by no fewer than three chappies. Perhaps this dear little naughtiness was their doing, and Pietro ipse is squeaky clean.
But I blame Nanny. Every time little Pietro told a Porkie, she should have given him a mighty whack and shouted ragazzo cattivo.
It's the only sort of language liturgists understand.