And have you ever read Pope Paul's address to those assembled -- including the protestant ministers -- upon completion of their work in Vatican II? Remember, the protestants actively participated in drawing up the documents of the Council:
A few excerpts from a speech by Pope Paul 6 on Friday, April 10, 1970 A.D. given in his Audience to the members of the Synod Vatican 2 Concilium, with comments in parentheses:
"Venerable Brothers ("Among the many members of the Hierarchy present at the audience were Cardinals: Lercaro, Gracias. Giobbe, Confalonieri, Rugambwa, Felici, Gray, Enrique y Tarancon, and Willebrands.") and dear sons, (the context clearly indicates this includes the Six Protestant "Observers" as proven from the first above photo which shows: 1. Dr. George; 2. Canon Jasper; 3. Dr. Shephard; 4. Dr. Konneth; 5. Dr. Smith; and, 6. Brother Max Thurian. ) We are glad to give you a heartfelt greeting, and to speak to you ... the work accomplished by you in these years, We are impelled to offer you a full measure of thanks for so great and so many labours. For you were prompt and diligent, as well as expert, in dealing with a matter that was complicated and very difficult--and without expecting any reward, but seeking only to be of service to the Church This work of yours (this you includes the Six Protestants) was indeed arduous; documents had to be drawn up by which that Constitution of the Council [Vatican 2] would be gradually put into effect...
In the light of these difficulties, it is remarkable that so many things have already been achieved and completed
To mention only the main points, let Us note [1] the many Instructions and other documents edited, and
[2] books of a subsidiary nature written by some of your
[3] the new [Novus] Ordo Missae;
[4] the variations introduced into the Liturgy of Holy Week;
[5] the Rites of Baptism for Infants,
[6] of Diaconate,
[7] Priesthood,
[8] Episcopate, and
[9] Matrimony;
[10] the order of readings for Mass;
[11] Rites of Exequies, and
[12[ for Religious Profession;
[13] the Roman Calendar.
[14] Soon also, after much hard work, the Roman Missal will be published to be followed by (among other things) [15] the Roman Breviary,
[16] the Rites for Confirmation and
[17] for the Baptism of adults,
[18] the revised Roman Martyrology,
[19] the second "Liber Pontificalis", and
[20] the Roman book of Ceremonies (Caeremoniale).
All this work of yours (this yours includes the Six Protestants) incorporates the principles approved by the Council's [Vatican 2's] Constitution on the Sacred Liturgy. For indeed it was from this, which we may call the "Magna Charta" of liturgical renewal...
You have made a special effort to see that ... "lex orandi" might correspond more aptly with the "lex credendi"... Thus it happily comes about that... Since this Consilium of yours comes to its end, after its excellent activity...
In this wish, and with a specially warm love, we impart to each and all of you the Apostolic Blessing."
(From: L'OSSERVATORE ROMANO, Weekly Edition in English, Third Year N. 17 [108], Thursday, APRIL 23, 1970, pages # 1 and 2.)