Yes, SAE definitions don't change, but they're not great at describing Tesla's progress. It's the main reason many of us still think Tesla is behind.
The problem of business naming is they do not need to adhere to the common understanding of that name.
Tesla FSD is one of them.
When you buy FSD, you can read its footnote that humans still have to drive for the FSD! That's the opposite of the meaning of FSD!
It should say "Supervised FSD" or "Level 2 FSD" and not just a plain FSD.
No matter how inferior Tesla FSD is, it's still better in terms of practicality.
I would love to have Waymo L4 jus to drive from home to work, school, shopping and other predetermined paths only. However, the chance of paying for it is slim because it only wants to deal with big business like fleets for now.
As a consolation, I can buy Tesla system freely.
If owners are not nerdy type, they would be frustrated with so many imperfections from the Tesla system.
However, I love to be a beta tester so I have no problem with Tesla beta program and I do think it makes my driving much safer with each release of new features.
So although the real FSD will be a long way from now, but I'll take supervised FSD anytime and it's good to know that could be this year!