Who benefits from this hoax?
The result of the hoax is that there will be no congressional investigation.
Burton was calling for an investigation before he had ever heard of James Reser. Testmony at McVeigh's preliminary hearing establishes that there was a video surveillance tape of the Ryder truck and the explosion, yet the public has never seen that video. Reser's alleged hoax does not change that fact.
Reser was just playing his accepted role.
When Jim Garrison tried Clay Shaw in New Orleans, his case was damaged by a witness he belatedly added to his list, Charles Spiesel.
The defense cross-examination evoked Spiesel relating how he fingerprinted his daughter each time she returned from college.
A witness pushed on Garrison blew up on the stand, damaging his credibility.
An old play from an old playbook.