I mean, what's the alternative here? The Swiss government, which they are subject to, issued a legal warrant. Any email provider you want to use will be subject to warrants. All of them.
They are technically incapable by design of complying with warrants for email data. In this case they were able to provide personally identifying payment data because the person paid for their account with... a credit card. They offer crypto payment options, and would not have been able to usefully comply had the person used that method.