Because instead of moderating, Hannity would just talk about himself for 90 minutes.
I can't listen to his radio program - wish that I could, it's on during my commute home - because every interview that he does, he winds up making it all about himself. Drives me up a tree. So, instead of yelling "Shut up and let the guy talk!" at the radio, I just turn it off. The radio doesn't respond when I yell at it, anyway. :-)
Sean Hannity likes himself some Sean Hannity.
So you are saying stick to the current format then.
“Because instead of moderating, Hannity would just talk about himself for 90 minutes.”
LOL