Actually the show itself does mention a few times that they are illusions manifested by fear. It's been that way since Jedi Training Academy became Trials of the Temple.
Sorry for the thread bump, but I just wanted to let everyone know that a retooled version of Jedi Training began today. Gone is the Seventh Sister and now Kylo Ren is the secondary villain for kids to face. The script has also been rewritten and seems to flow better now, in my opinion.
That was all gone months ago so it definitely wasn't taken down for the storm. Don't think we'll see any of that brought back, but I'm hoping they move the Miss Piggy billboard to somewhere it can be seen. It seems strange that they didn't remove it with everything else.
I watched it on YouTube last Christmas. Hadn't seen it in probably 25 years from back when my family had a VHS copy recorded off tv. Having the Muppets, the Fraggles, and Sesame Street all together was pretty special.