It's called "Full Self-Driving (Supervised) Beta" and you agree that you understand that you have to pay attention and are responsible for the safety of the car before you turn it on.
So the name of it is a contradiction, and the fine print contradicts the name. "Full self driving" (the concept, not the Tesla product) does not need to be supervised.
Come on, you know it's an oxymoron. "full" and "supervised" don't belong to the same sentence. Ask any 10 year old or a non native English speaker who only learned the language from textbooks for 5 years can tell you that. Just... stop defending Tesla.
It's a name that accurately describes the ultimate goal of the technology. It's not there yet, and Tesla makes it clear that this is the case. I don't see an issue with it and it works exceptionally well as is.