Pretty sure it says right on their site that protonmail/vpn cooperate with law enforcement when "something obviously illigal" is claimed. They have thousands of cases they give data on every year. The whole "swedish court system" is marketing. If they were legitimate they'd be talking about data center black boxes, why they were funded by NSA interests, how things actually works.

My bet is this, proton can't actually afford to defend against thousands of court cases, so they comply. They can't afford for their service to look insecure, so theyre selective in divulging how much surveillance they have to comply with.