I tried to watch the keynote video 3 times and after a few seconds, it would show me a login popup. I haven't had a FB account for over 7 years. Why can't they

I tried to watch the keynote video 3 times and after a few seconds, it would show me a login popup. I haven't had a FB account for over 7 years. Why can't they just let me watch what they are without an account?