While these statistics seem alarming, your dog is just as much at risk getting into the car to go to the veterinary hospital for the anesthetic event.
The way dogs recover from anesthesia is an individual matter.
If Rover seems a little boozy when you pick him up after he's had surgery, don't worry; what you are seeing is the aftermath of the anesthesia.
Luckily, the wobbly, slightly disoriented effects are temporary, and will resolve soon.
If you were going to be stuck in a dark, cool cargo area near a roaring airplane engine, you would want to be sedated.
So it would be natural to assume your pet would prefer this as well.