Community authorship of the gospels

How often have you been told that the traditional writers of the Gospels were mere pseudonyms for community authorship? This idea, of course, has no historical credibility, but it is almost assumed by two-source theory (Mark and Q) proponents in order to preserve their theory of late first century authorship. What does the Church say about this? Here are a couple of things that they won't quote in any of these biblical classes...

From the Historicity of the Gospels (Pontifical Biblical Commission 1964 - during Vatican II)

Under Form criticism/erroneous premises, "...and finally, some [form criticism advocates]minimize the authority of the Apostles as witnesses to Christ. Belittling their office and their influence in the primitive community, these people exaggerate the creative power of the community itself."

From Fr. O'Conner's work on Christology, the Father's Son, p.33: "The Instruction Sancta Mater Ecclesia [preparatory document for Vatican II] referred to the attitude which would "exaggerate the creative power of the community" and found it "contrary to Catholic doctrine, devoid of scholarly foundation and inconsistent with the sound principles of the historical method." The penultimate draft of Dei Verbum, no. 19, likewise contained a reference to the imagined creative powers of the early Christian communities. It read:

"...And preserving the form of proclamation, always in such a way that they would communicate to us things true and sincere about Jesus, and not fictitious things flowing from the creative power of the primitive community."

Fr. O'Conner concludes, "The remark was omitted, however, in order to keep the positive tone of the presentation and to avoid "giving recognition to an opinion which had seen its day."

Does this community authorship sound like the Teaching of the Church? Hardly.