Thanks for posting this. I'd read about 5 yrs. ago that Matt. was now believed to be the first gospel written, but I didn't know that it was based on Dead Sea Scrolls scholarship.
I'll have to remember the name Papias (c. 130), Bishop of Hierapolis who indicates that Matt. was the first to compile a collection of Jesus' sayings in the Aramaic language.
I'd say that's more compelling than having some Johnny come lately from the 20th century saying Q or Madame X wrote a gospel which others were based on long after Jesus ascended.
And, yeah--no media acclamation of this. At least not on the order of finding some box with Jesus' brother's name inscribed on it--or whatever (hoax that it was).
The thing to remember is that Crossan et al have an "agenda" as we like to say. That is to discredit the writings of the New Testament. That is why the so-called "Gospel of Thomas" is said, with a shred of evidence to back the assertion, to be the "first" gospel. This kind of thing has been going for for more than 200 years, so that the historical foundation odf Christianity might be undermined.