The "meta-science" comment is a strange one. By that definition, gravitational waves, Bose-Einstein condensates, Higgs bosons, genes, and dark matter were all "meta-science".
What is so strange about it? If a theory is not and cannot be tested, it is not science by definition.
That doesn't mean the theory is not valuable, just that you need a different word to describe it. If a theory may become testable in the future, but is not currently, meta-science seems as good as any other term.
