Really? Every thread questioning the ordinary form of the Mass goes pretty quickly to the same place – questioning the provenance of the Mass and the motives of those who instituted it, including linking to conspiracy theories about how supposedly nefarious clergymen conspired with protestants and masons and whomever to ruin the Mass. This thread got there pretty quick
You need to go back and read the comments then, because how you arrived at that premise, I have no idea.
The OP asked a question about references to anything that describes who participated in the development of the current form of the Mass and if there was any truth to a rumor about Lutherans advising on the changes in the Mass.
I personally made several comments, including quotes from Michael Davie’s book,
Liturgical Time Bombs in Vatican II, which showed that through his research and interviews; he found that even though the Protestant Observers were not allowed to participate in the debates on the floor of the council; they did indeed have access to the same documents and were given opportunities during informal meetings with the
periti. Where they were allowed to comment, criticize and make suggestions. The
periti would then take whatever suggestions or criticisms they felt needed to be discussed, back with them when the debates resumed in the
Consilium.
I simply presented what was shown to have taken place. I never commented on, nor did anyone else that I read, the motives of the periti and how they were looking to destroy the Mass and the Church. Nor did I ever offer any arguments that said the OF was invalid. I do believe that the changes adopted in the new rite, did favor a more protestant friendly form of the Mass, especially when compared to the Mass prior to Vatican II.
However, that is not the same as saying the OF is invalid and the nefarious clergy members conspired with Protestants and freemasons to ruin the Mass. That is your own presupposition when you approached this thread.