Personally I am out regardless but isn't passable now the standard most people are hoping for? We're never getting great so being able to say "well, that wasn't a disaster" is the barometer for success. I guess the Billy Joel fans were not coming away commenting on how awful Jon was, so chalk it up as a minor win. Looking at the performance on a more granular level (again, it was passable), he still looks awkward even when attempting to do the front man schtick. I believe he has just lost it, whatever "it" may be.