"A computer wrote it!" seems to be, based on the article, quite a simplification of how it was created.
If the end product is decent, I don't really care... or frankly see how it's all that different than the written-by-commitee corporate creations in film or TV, or the workshopped and workshopped and futzed and molded bland musicals that show up on stage. The romantic image of two nice Jewish boys sitting down at a piano and churning out songs and lyrics we adore is, by and large, gone when it comes to big-budget shows.
Computer programs are now more sophisticated- computer-composed music or visual art is progressing rapdidly.
"...everyone finally shut up, and the audience could enjoy the beginning of the Anatevka Pogram in peace."