It might be financially challenging for large, abusive platforms which are heavily built on pirating copyrighted content, but it shouldn't be much of a challenge for ordinary websites, blogs, and smaller sharing platforms. Consider that a personal website may have the site owner bother to moderate the comments manually. A small business may have to hire a moderator or two. YouTube may need to hire 10,000 people and may have problems.
So basically the people who voted for this law disagree with you.
This is a farce. They already have this. The automated system decides to spit out a false positive, then you appeal to a "human" who has neither the time nor the expertise to make a reasonable determination so they just rubber stamp whatever the automated system said and its incorrect determination stands.