Jones is a kind of "bullshitter," as defined by Harry Frankfurt [0][1].
To paraphrase — a liar has some respect for the truth, because he knows its power and shies away from it. A bullshitter doesn't care if something is true or false, only if they persuade their listener, and therefore the bullshitter has no respect for the truth.
The point I was trying to make, and maybe I did not make it well, was that this is another thing Jones's adherents can point to to say "well, look, he was right about this." That means he can persuade more people, which is clearly not good.
[0]: https://www.youtube.com/watch?v=W1RO93OS0Sk
[1]: https://en.wikipedia.org/wiki/On_Bullshit