An important thing to note here is that they were served with a "Summons for Records," not a warrant. With a warrant the DHS has to provide probable cause, it has to be signed off on by a judge, and cannot be refused. A summons has none of those things; it can absolutely be refused, at which point they would have to get a warrant.
I'd also like to add that I don't have an ethical problem with a VPN company that keeps logs and turns them over to law enforcement with a valid warrant. Lying about keeping logs, though, I do find unethical, as well as not requiring a warrant for access.
I also think that explicitly not keeping logs to protect users from law enforcement is shady to say the least. If law enforcement has a valid warrant, I don't have an issue with providing them with the data they need to find and prosecute.
I'd also like to add that I don't have an ethical problem with a VPN company that keeps logs and turns them over to law enforcement with a valid warrant. Lying about keeping logs, though, I do find unethical, as well as not requiring a warrant for access.
I also think that explicitly not keeping logs to protect users from law enforcement is shady to say the least. If law enforcement has a valid warrant, I don't have an issue with providing them with the data they need to find and prosecute.