The block is indeed in place, but trivially circumvented using a VPN.
Please e careful with your mirror. You are now susceptible to the same lawsuit as the original Project Gutenberg. I am not sure where you are in the world, but Germany has legal assistance treaties with the US/UK/Scandanavia, all EEC and Schengen countries.
https://www.congress.gov/treaty-document/108th-congress/27/d... https://www.mlat.info/mlat-index