Is snow an edge case? My cameras don't function when it's snowing or there's snow in the ground. Or there's snow banks around the road. My dash is lit with the "some cameras are blocked" 24/7 for the whole winter time. And proximity readings are blinking those yellow / red lights all the time from the right side as it thinks the snow bank next to the road is too close. Or the system thinks the camera is blocked because the light reflexes from the snow.

Seriously, if they can't solve even simple problems, how are they going to solve something more complex? I'd be happy for even a implementation of a removal of these warnings when the system doesn't understand what it's doing, but I don't think they know when it doesn't function correctly.

Snow is a difficult problem even for humans.

In worst cases the road turns from a 2 lane road to a 1.5-1.8 lane road when there's enough snow on the banks. Multi-lane motorways turn from 4 lanes to 2-8-3.5 lanes. Humans have trouble navigating that, dunno how any FSD system would manage it in our lifetime.

Also sometimes the "lanes" that form on the road can cross the center divider to the oncoming lane, which is really dangerous if you're not paying attention. I almost hit an oncoming semi-truck just one day because of this. It's an example of a rare edge case.

If camera don't function in snow, then Waymo is in a worst position because they rely on Lidar -- which simply cannot work in snow, at all.

It doesn't work perfectly yet, but they're on their way making it work. Give it some time.