Not all of the contents made accessible via the page was even illegal

Would you say the same if 30% of the links on the site were to child pornography? Why does it matter that some of the links on the page were to legit content? DDW did the same and was still shut down by the DOJ.

and the page itself is not illegal

I doubt that there are many places in the world where getting paid to distribute links to darknet drug markets isn’t illegal. The US certainly isn’t one of those places.