I agree with the above posts. Wiper activation is the worst feature in an otherwise spectacular car. I think it's clear that when the car was designed someone drank the kool-aid and believed they could do a better job than most cars by using a neural net to sense the rain. The problem is they use the same camera as is used to see the road for sensing. It's right up against the windshield. If there isn't a drop of water right there, then no NN no matter how smart can tell that it should activate the wiper. Moreover there are individual sensitives. Different people are bothered more by drops than others. So, their approach failed but they are unwilling to let go of the failed approach. This is made much worse of course because the manual control is on the screen, which means you have to take your eyes off the road to use it.
There are lots of partial fixes. They could use speech to control them, or a double tap on the wiper cleaner button, or they could just notice that you are tapping the washer button frequently and use that to adjust the NN. But, they persist in a failed approach.