As a retired ups driver I can say about 99% every driver throw boxes, but as far as me I only throw boxes if I know it's not fragile we can tell if it's clothes ,shoes, etc. Not a 100% but that looks like from a store and looks like shoes but it's to far to tell , and it doesn't look like hes having a bad day.
That is actually the majority of delivery services , I’ve been working with Amazon and DPD , and believe me you don’t want to buy any electronics from them ! I have seen pickers throwing parcels 8 meters away because the are too lazy to take it to the bay! And the other thing is the driver get overloaded every day I left Amazon I had 400 parcels to deliver in 8 hours!