While that is a perfectly good argument for AfD or even a PROD, CSD A7 clearly states that only an assertion of notability is required (for example being top 10 in the world).  It does not require that that assertion be supported by references.  Sure, we can ignore spurious claims of notability (Joe is the greatest person ever!), but the claims in this article were not spurious.  I think you should rethink this one.  -