No, that’s just stupid. If someone sings off key, I have every right to say that person is singing off key and it sounds bad even if I also cannot sing on key. If I see a bad movie or read a bad book, I have every right to criticize it even if I cannot direct a movie or write a book myself.

I don’t need to have attempted any of those things to know that what I experienced was sub-par. I’ve heard better singers, seen better movies, and read better books.

If what you said were true, only movie directors would be able to criticize movies. That’s not helpful.