You're missing the point. The law didn't take into consideration that people are awful and as a result not only didn't accomplish its aims of either reducing the amount of data collected or making users aware of data collection, it made the act of using the web worse.

This is the problem with feel good laws like this. You always have to write laws assuming that those negatively effected will be bad actors that will try to subvert the law. That's just human nature. People want to keep doing what they're doing.