It isn't about whether we agree or disagree with the decision. How do you figure that it's even relevant to this thread? The relevant thing is, you are fallaciously comming to a negative conclusion from affirmative premisses. Basically your argument is akin to saying that since SCOTUS said that all horses are mammals... that necessarily means that dogs are not mammals. Face it,the term "no law ex post facto law" means exaclty that... no ex post facto law. Qualifiers are simply irrelevant in this context.