You're making the logical error that the amount of bites indicates that a breed is dangerous. The claim I (and many others) make is that there's no such thing as a dangerous breed.
As an analogy, suppose the government finds that cars with big flame stickers stuck on them get more speeding tickets, or end up in more accidents. Does the sticker make the car go faster? Would you expect the accident rate to go down if the government banned flame stickers? Or would you expect cars with lightning stickers to suddenly cause more trouble?
Ultimately, the owner is responsible and studies have shown that the owner is by far the strongest indicator of whether or not there will be problems.