Cars and bikes are directly controlled by humans, and in the case of an emergency, then can perform necessary maneuvers to reduce the damages. Not saying that always happens, but for the most part it does.
A drone that loses an engine falls out of the sky and lands on top of anything that is below it, and as of right now, there are no evasive maneuvers that can be executed. Especially for drones that are being used to record large public gatherings, things like multiple engines or parachutes should be absolutely mandatory, at least by the organizers of the event.
Needless to say, I'd bet it'll take one or two insurance claims until they are.
The front fork on your bike is almost certainly not six-nines reliable. If it breaks, you're not doing any evasive maneuvers. Ditto for car electronics. I'd wager that cars fail at a rate higher than 1:million, potentially leaving the driver effectively with no control (literally no control if drive-by-wire, no effective control for many people if power steering and breaking cut out).
Well, also look closely at the most common failure modes for a front fork: (1) the handle bars wiggle out of alignment, which still allows you to brake and stop safely; (2) the axle nuts are loose, in which case you probably won't even notice unless you hit a bump, as the dropouts for removing the front wheel point toward the ground; (3) the steering locks in a particular direction, in which case you still can brake safely and stop. Catastrophic failure of the welds or metal itself is extremely rare, without some advance warning like wobbling or creaking.
To my knowledge, no commonly sold cars are exclusively drive-by-wire for the braking system. If you lose all control in a car, you can turn off the ignition and forceful application of the brakes allows you to stop, even if you lose the power assistance.
By contrast, the most common failure mode for a drone in the air is... it falls out of the sky. That's pretty much the long and the short of it. There is good reason that flying objects should be held to a higher standard of safety.
I even suppose that parachutes or stability with 1-2 engines lost might not be "mandatory". The cost of insurance of unequipped craft flying on a major event would be so high that nobody would even try that.
A drone that loses an engine falls out of the sky and lands on top of anything that is below it, and as of right now, there are no evasive maneuvers that can be executed. Especially for drones that are being used to record large public gatherings, things like multiple engines or parachutes should be absolutely mandatory, at least by the organizers of the event.
Needless to say, I'd bet it'll take one or two insurance claims until they are.