Translation: "I still haven't seen the show, hence me saying this as if it were fact. Even though it isn't. There's been, maybe, one show that's been like it before, and even it was a drama. But I wouldn't know, because I haven't seen it despite telling everyone else how to act. I am, by the very definition of the words, blatantly ignorant about what I'm talking about."
What "fact" ? I asked a question!
I don't understand why people, especially young people, are suddenly so interested in musicals again. I am not criticising that interest, just wondering why.