Tesla tries new fix to temporarily improve automatic wipers

Nice! I always figured it should work that way. Nudge the car to let it know that something is happening and it is not responding enough.

I know nothing about their system besides that it is heavily relying (if not exclusively) on vision. But with their cars having microphones, can't they detect rain hitting the windshield in addition to vision to know when to run the wipers? Or is that already the case? And it still doesn't solve the issue acceptably?