The problem is nobody else would be an upgrade at host. Brad is good for the podcast but you've seen these guys host shows when Jeff is out. They're...well...not great. Drew might actually be the best of the bunch at keeping a show moving which is probably the producer in him.
Jeff is a pretty dang good host as is and while he might work well as the guy playing off the host as well or better than being the host there isn't anybody left in the office to take over the big chair.
It would have been cool if they went until it was shut down but it doesn't seem to be like an MMO shut down where the devs turn on all the crazy stuff. Maybe they could have let the post stream dance party linger a little longer.