Huh? Which developed countries don't have road markings on highways?
Paint is just one aspect. There are also plenty of cracks and uneven pavement as you can see from the street view.
Now imagine trying to teach a car these things!
Now consider how you may feel about a car which has decided based on all available data that this strip of road is a lane. Its crystal clear to that car until its suddenly not.
You reacted with what appeared to me to be very restrained aggression (typical and acceptable, no offense intended) as you struggled to figure out if they were just being dense on purpose or were actually ignorant. I dont feel either were accurate but your message conveyed that was what you felt to me.
A car simply says “hey i dont know what im doing anymore. Help!”