Umm I think you need to listen again, there's a huge amount of ad-libbing in there. It's not a completely different show, it's not supposed to be. The Hard Rock Hotel scene was great, Avatar guy and his tail made his way around to the front row of the whole theater, the extra long orgasm, they threw in the "that's a dick joke" line used in years past, they had the snow cone song and so much more!
I'm really not sure what others were expecting with the Jack show but they threw in some nice ad-libbing as well. I would have liked something a little more at the end as well, but probably better in that situation for that character that he didn't break character like Bill and Ted do at the end.