Actually I've heard Howard say positive things about Axl in the past..He even played the BETTER leak and gave it a promising review..
He has said plenty of positive things about Axl over the years. Obviously he's said some negative things as well, but he does that with all celebrities. I can't name ONE person he's never said a bad word about. That's just who he is, and why people love his show. And trust me, IF Axl went on the show he'd treat him with total respect and I'm sure they'd get along great.
But I honestly don't see Axl doing any interviews anytime soon. I mean, if it hasn't happened to this point, why now? He seems quite content the way things are going right now and he's getting his thoughts out there via twitter, etc. As long as he stays happy, it's all good. Maybe one day he'll trust the media again, but I can't say I blame him.