The relevant danish law and procedural texts state an intention to align with the UNCRC (Rights of the child), danish law therefore doesn't contain a substantive claim for why fictive (and therefore also generated) images of CSAM should be equated to non-fictive CSAM.
The answer to if it generalizes is, as with all new law, that we just don't know. In this case, the procedural for the passing of the last amendment to the relevant section includes the specific point that fictive CSAM should be included. It seems doubtful that other such procedurals would contain the same language. That doesn't rule out that this case is used as a basis for claiming that AI generated images should be treated similarly to real photographs when the two are indistinguishable.
The answer to if it generalizes is, as with all new law, that we just don't know. In this case, the procedural for the passing of the last amendment to the relevant section includes the specific point that fictive CSAM should be included. It seems doubtful that other such procedurals would contain the same language. That doesn't rule out that this case is used as a basis for claiming that AI generated images should be treated similarly to real photographs when the two are indistinguishable.