I don't think it's "gloating" to comment on the fact that other companies besides Tesla have attempted L3 and so far have been unable to achieve it. It does make me feel vindicated in my decision to pay for EAP but not FSD. I desperately want FSD, or at least L3 city+highway to become a reality before I get too old to drive. But to date I'm still driving the best driver-assist system available to the consumer, and it does everything I expected of it at the time I bought it. It's not perfect but it's good enough and more, for my needs.
The fact that other companies besides Tesla have been unable to achieve L3 to date also shows me that autonomous driving is much harder than I and many others expected it to be three years ago. OTOH, I never thought that Elon's time-line was realistic. Three years ago I thought that true full autonomy was at least five, and maybe ten years away. We've got a long ways to go to get to that ten years. And L4 already exists within very small, perfectly ideal areas.