I am sure all the documentation this guy has ever written has been 100% perfect. I’m a fucking awful violin player, but I know unskilled/professional playing w

I am sure all the documentation this guy has ever written has been 100% perfect. I’m a fucking awful violin player, but I know unskilled/professional playing when I hear it. Is the implication that I have no room to complain when I buy a ticket and the performance is bad?