Elon posted a huge hail cannonball hitting a roof tile: https://www.instagram.com/p/BT7HVS3AZ4q/. It looks pretty resilient.
Tesla claims their shingles are a lot more resilient than standard roofing material...
They say the glass is warrantied for the lifetime of the house, but it will be interesting to see what exclusions are in that warranty.
The area I live in just had a huge hail storm. Most roofs in our neighborhood will require repairs. That's a bummer with asphalt shingles, but it would be a lot worse with an $80k roof.
Most people won't think about those risks, but over the time period you need to consider for a roof, it's a big risk in most places.