Earlier quoted context omitted.
If you thought that Protonmail (or any other company) was going to go to break the law in order to avoid keeping logs on you despite a Swiss-backed warrant saying they had to do so, then you had the wrong impression. But I never got the impression Protonmail was saying that.
I have never used the service and don't know or care a thing about it. But their advertising is laughably inconsistent with the reality of the service provided. If it's illegal to provide a completely anonymous email service, then you should not claim to provide a completely anonymous email service.
Except maybe Lavabit, that guy apparently shut everything down to avoid doing something along these lines. So maybe he wasn't actually lying.