Musk stated that they were looking for Level 4/5 next year. They demoed it to the analysts, in admittedly controlled circumstances. I have little doubt that they mean what they say even if their timeline is off.
That's everything right there. It's not 4/5 if it's in tightly controlled circumstances. I can make anything level 4/5 if I get to control the conditions. It's the same as claiming 100% model performance by testing on training data.
Some conditions may apply. Driving under inclement weather conditions, or in a dirty car, or in winter, during heavy traffic, on a road with poorly painted etc.. is not supported. /s
Off by a few decades.