Utterly debunked is a stretch. The FBI won’t even flatly deny it. I may have missed out on a statement by them or testimony under oath where they did deny it, but so far I haven’t seen it. You might be able to pull up something I haven’t seen?
And to be fair, this entire thread so far is speculative and fueled by theories that have yet to be proven. I think the point of these hearings is to bring some of these theories to light and put others to bed. Maybe we’ll all know a little more by the time it’s over. Probably not, but maybe.