Drones are usually pretty good at staying stable. Especially when they have 6 or 8 props rather than the traditional 4 of a quadcopter. With Hexacopters and Octocopters you can even lose a blade, and it’ll still fly relatively well. At least long enough for you to land it. Apparently, though, not when hit by a flying golf ball.
The story goes that 8 year old up and coming golfer Ruby Kavanagh swung and accidentally hit the Yuneec Typhoon H drone that was filming her. Video of the incident shows parts flying off the drone, after which it banks then crashes into the ground.