Board Thread:General Discussion/@comment-35086897-20180410025240/@comment-26018514-20180417150842

They were originally claimed as part of a "fairy tale", that really says it all. If there is no scientific explanation given, or scientific study of its use, it is magic... the writers really don't need to bother calling it out.

Faunus Genetics have known rules, so they are in fact a science, But SEW powers activate and do things beyond scientific expectations, so they are magic by definition.