Yeah, it gets a little distracting at times, but their decision to do it was pure genius, if only due to the fact that they have a lot less work to do when the show is finally over.
Actually I think it creates more work. All those props have to be packed up and unpacked, loaded and unloaded, etc. I think its kind of cool and not really distracting because they arent interfering with the guys up there. They are in costume. They are part of the show. It reminds me of the Talking Heads Stop Making Sense show where they began with a bare stage and just a boom box for a prop and bulit the stage up during the show.