It's true. I view Beetlejuice as more on the tier of HoTC or Trick R Treat as a more or less niche franchise that would be cool for fans and could work fine as an extra face on mugs and napsacks, but it definitely couldn't hold the entire event on it's shoulders alone.
All I was saying is that the musical doesn't hurt him if he did happen to be the Headliner. I'd be a lot more worried if the musical didn't exist and he was still headlining, that'd be way too much pressure on that IP.
Also for the record, I would love anything Beetlejuice at the event, and judging by the fact that Legacy has designed 2 Beetlejuice houses in his free time, I assume he appreciates the franchise as well.