Well, supposing Ed Morrissey actually wanted an answer to his question, it's obvious enough: The national GOP only spends money in an election when the party establishment sees a Dede Scozzafava-type opportunity to screw over conservatives.
If Scott Brown were a corrupt closet homosexual running against a pro-life conservative with grassroots support, John Cornyn would spend every cent in the NRSC budget in an effort to defeat the conservative.
NOT ONE RED CENT for NRSC!
UPDATE: Leo Pusateri at Blogs for Victory says:
Having just gotten off a blogger conference call with Mr. Brown, I can categorically state that Brown denies any lack of support for his campaign by the RNC. . . .Pusateri says give directly to Scott Brown's campaign, and who can argue with that?
It would appear that the story from the Boston Herald was designed not to report on the status of, but rather to outright sabotage the momentum of Brown’s Senate campaign.
UPDATE II: Professor William Jacobson details the strong blogger support for Brown.