Good argument but if the guy uploading it would be in another country this law couldn't be enforced. Basically it's an unenforceable standard. To insist on enforcing it could lead to draconian measures.

The article mentions upload filters but that then again create a large burden. This burden requires more work or more money. Which leads to a centralization or monopolization of the internet. Which would be in the interest of social media corporation who can shoulder the burden.

In the future the ethical issues of porn could be solved by investing in and creating a near perfect AI porn model that can serve all our degenerate needs WITHOUT requiring humans to take their clothes off. Basically ethically sourced synthetic "vegan" porn that is created for your on demand in your own home. And then you can ban all the real porn because the demand for it will plummet. Of course there will still be people who get off on the abuse instead of on the fantasy.