I've followed Dave for decades and generally speaking been a fan, but is what you say really true right now?
He never seems to criticize ROH (other than match quality) because Delirious is a source. He never says anything negative about PWG no matter what, can't imagine he will about AEW either with Cody, the Bucks and Jericho being sources. That's three major promotions I would say he isn't unbiased in his reporting. I would absolutely say his NJPW love is a little over the top as well, but not to the same level.