So we had to get into the nitty-gritty, and man, this is nasty, pungent stuff!
I'm overstating things, of course.I doubt this is what he had in mind. But then again, it's apropos.
And it's not just the NCW; it's the same for many lay movements. They are seen as the salvation of the laity, when everything was there for them in the Tradition all along (that's not to say lay movements are bad, but that certainly explains why they're so praised while ordinary Mass-going Catholics are viewed as inferior). So while the lay movements may do much good for the Church, the spirit that drives people to glorify them is NOT of the Church.
That is partly where the NCW gets its strength: on the one hand, it feeds on the whole "Spirit of Vatican II" do-what-you-want manta, and on the other hand, it's a reaction against all the freedom and license. Hence, it's cult-like control over members while at the same time flaunting the Tradition.