And it keeps changing, too. I remember when the very mention of "disability" was a no-no; people weren't "disabled," but "differently abled." Then "physically challenged." The current "people with disabilities" is blessedly accurate, but it's hard for the "temporarily abled" to keep up.
As for "spectacle": All performing artists make spectacles of themselves; that's what they're forto go past conventional limits and give us spectators something worth looking at and pondering.