The opposite. He never had anything to say, he was just a great interviewer.
The problem is he started believing he had something to say, and started talking over guests he disagrees with... The last one I watched the guest spoke for less than 2 minutes before Joe went on a 5+ minute rant about how he didn't believe it. I can't even remember what it was about, because the guy didn't even get to lay out his argument
We got it Joe, you think the world is a magical place and have strong opinions on how humans should interact. Let the science man talk
He has done a lot to help spread things like anti-vaxxer lies. He's given platform to shitty right wingers and treated their ideas as reasonable alternatives to more mainstream views. He generally has presented his views as moderate and he's "just asking questions" which seems disingenuous.
He generally comes off as an idiot who likes money, but being responsible about what he allows on his show is not a big concern as long as the dollars keep flowing