Interesting. The windshield washer test jives with what I've experienced in very light rain.My MY with "FSD" turns off AP with "bad weather detected" when I spray windshield washer on the windshield... If I just used the spray button (which runs through the computer) and right after that it sees "rain" on the windshield (detected by the same computer) and it can't connect the dots... it doesn't take a lot of intelligence, artificial or otherwise, to figure out what just happened, but my car doesn't have it, so no, I don't think it's ready.
I have been driving this "FSD" MY for 15 months now. Summon worked exactly zero times. The only capability of Summon seems to be to display various error messages and stop, in any scenario I tried. Autopark worked ONCE. I was ecstatic... it actually found a parking spot and parked itself! Yes, once in 15 months. I really don't understand what I got for my money when I paid for FSD vs EAP. Don't get me wrong, I love the car, but if I would buy one today, I would absolutely not pay for FSD, and I see it as a waste of money - if you are in Europe, the only real life difference between EAP and FSD at the moment is a line of text on the specs screen.
I think Elon said the AI team had a Sept 2022 deadline for completing autopark and summon. Gotta wonder if the effort was sidelined for more important tasks and/or possibly waiting for future sensor changes.