I have a few interpretations if this based on my limited understanding if it.

I think the oversite committee has to hear him out. Ignoring a complaint from multiple members of military about potential misappropriation of funding would be egregious on their part. So they are listening to everything and trying to be professional about it.

Now the cynic in me believes this is actually a genius way to push pulp. If this guy writes a book (assuming he hasn't already) he's just given himself enormous credibility and advertising at little to no cost. Loud enough to be heard but vague enough that he can't be disproven or take on any accountability.

But the conspiracy theorist in me just sees this as an attempt to discredit and humiliate this and other sub committee's. Ammo that can be used to try and shut it down or prevent them from more serious work.

Though I'm a Candain and only getting bits and pieces of this story so I'm probably way off base here.