We can agree that most people who post on this forum about the wipers seem to not like them. BUT, this forum is not a representative sample of Model 3 owners. Forums are, unfortunately, havens of negativity. The majority of posts are complaints. Can you imagine the following post:
"Model 3 Automatic Windshield Wipers are Awesome"
Anyway, I have had two other cars with automatic windshield wipers. The Model 3 I find better than my BMW's implementation and worse than my Audi's if that helps. And, overall, I have no issue with Tesla's implementation and have driven the car in every variety of precipitation that I can imagine.