The headline attached to the article itself is totally fair. Moreover, Gurley is quoted in the article, more-or-less directly refuting the predominant hype mode:

"The part we haven't figured out yet, the last 3 percent, which is snow, rain, all the really, really hard stuff — it really is hard," Gurley said. "They have done all the easy stuff."

This all rings true to me, though I'd say it's more like the last 20 percent, not the last three. Outside of silicon valley, weather exists, and it does bad things to the light-based sensors that these cars currently depend upon.

In the worst case, level 5 self-driving works out to solving AGI. We just don't know yet.