Scott once said Slash was the best guitarist he's ever played with. He's no stranger to hyperbole and has a history of saying stuff like this. And the likelihood is that neither Eric, nor Matt, nor any other drummer he's played with are seeking out interviews with Scott.
That said, didn't like it with Slash, don't like it here, and I agree it comes across poorly. I also doubt he's never been this excited since Core. Hyperbole.
He still sounds good and glad he seems happy.