If that were true, sci-hub.se would be blocked in Germany on 1.1.1.1 (1dot1dot1dot1.cloudflare-dns.com), it isn't blocked, therefore it's not true. (Modus tollens)
I am a Service Provider ("Diensteanbieter") according to DDG and I don't block a single page, which makes your statement not only wrong, but rather so wrong that not even the complete opposite would make any sense.