Therefore creationist theory is not science. Therefore, if the prediction prove false, the theory is not falsified. Thus, a key premise in the argument is false. Scientific theories together with auxiliary assumptions form models . Predictions are deducible from models.
Scientific models are falsifiable.
Creationist models are not falsifiable. Therefore creationism is not a science. But when it is coupled with other statements, it produces observational consequences. For instance, let O be any observational statement. In other words, this criterion lets in too much, and it would be easy for creationists to use it to argue that creationism is a science.