It is truly terrifying. The news story is just a cover though. The bear wasn’t “flying,” it was hit by one car, which punted it up into the windshield of an oncoming vehicle. This sort of thing happens all the time with animal collisions.
The bear was struck by a vehicle on the highway and launched through the air. A vehicle was travelling in the opposite direction and was struck by the bear. The bear carcass flew through the windshield, instantly killing the driver and the passenger seated behind him. The only one in the car to survive was a young man seated in the front passenger seat who witnessed her girlfriend get decapitated by the carcass. He sustained minor injuries from the vehicle crashing shortly after.