Did you watch the video I posted earlier?I think you are correct. I question how 'intelligent' they will be e.g. If speed limit is 30MPH will they just blunder on at 30 even though the car that's 3 in front has slowed?
It's getting better:-
https://x.com/Tesla/status/1772718089269809499?s=20
Watch it. This is how Tesla 12.3 FSD deals with complex roadworks. It doesn't "blunder on at full speed".