I would say encryption is somewhat of a red herring. It is the introduction of similar surveillance policy that is quickly becoming widespread, I don't even think Hungary is an early adopter here. The sources even citing roughly 'granting powers other governments already have' and establishing an agency TIBEK with similar access to data (without warrant IIRC) as common 3 letter agencies. They even use the same terrorism/ISIS/Brussels/France reasoning. I guess in the end everyone can pick their surveillance point on the safety - freedom graph.