High Schools have been sued over unauthorized productions (unpaid), so, yes, they should be sued.

Some might call it censorship or being overly-controlling, but I think the creator of a theater work deserves to have some control over how their work is performed, and if the changes made are drastic enough to defame the spirit and message of the work, then the creator, or whoever controls the rights to it, are justified in taking action against the violator by suing them or prohibiting performance of the work, under pain of lawsuit if they defy that order.

You shouldn't be able to just pay a royalty fee, mangle up the copyrighted work any way you want to, and then perform it under the same name as the original work. Because doing so would be sort of like throwing all the civil law about defamation out the window.

@TomMcGiverin Church didn't pay royalty fee, since they made one change to the end, they are claiming parody.

@Beowulfsfriend I get that, but even organizations doing parodies need to pay royalties and get permission to perform something like that. I know, because a local theater group here in Iowa did a musical parody of A Chorus Line, in which the writer and lyricist used songs from the former musical with new lyrics, satirizing the Iowa Democratic political caucuses in 2020. And the group couldn't even videotape it and put it on You Tube, without getting sued, because the rights holders wouldn't allow that. And they did have to pay royalties, even tho they only used some of the songs from the original.