There is a solution to the "inconvenience" that you just refuse to use, ergo, a fight.
Plus, it's not a bad design, it's a great design, it is designed to do EXACTLY what it sets out to do, which is to get users to sign in (so they can track your viewing habit, yes, i am fully aware before you even go there), but you are fighting it, yes you are fighting it because you don't want that. You want to stay anonymous, which is fine. So, use a fake email address.
Truth is, nobody cares that you love watching cat videos.