I can promise that if you were to hang around ANY brand of service department, you can hear these horror stories.
If you were to sit in the veterinarians waiting room and talk to a few people, it would be real easy to get the idea that all dogs are sick. You are in the place where the people with sick dogs tend to gather. You are not seeing the zillions of healthy dogs that are going after the newspaper, or chasing a stick for their master.
Nothing is perfect and ALL manufacturers make defective products whether they admit it or not. It's only natural that when someone goes through one of these horror stories, they don't want to buy another car from that manufacturer again.
Have a great day,