An observation made by shrewd businesspeople throughout history is that you can only trust money. No amount of words, documents, statements, etc... matter unless someone is willing to put up real cash. If there are no
consequences, then by definition misdeeds aren't punished and will be effectively
incentivised.
E.g.: You can trust a legally enforced warranty with full refunds guaranteed by the government, because it costs real money to the manufacturer. You can't trust a "Best Quality!" sticker. It basically costs nothing. It's just words.
Copyright protection laws are the same kind of thing. While the marginal cost of enforcement is zero, there is similarly zero incentive to do it correctly and respectfully of the law.
If there was enforced financial penalties for each screw up, then it is assured that any errors like this will be ironed out very quickly.
No penalty? No bug fixing!
