I was wondering when this would happen. The article ignores, however, the entire mechanism that allows GS to work: your citing articles are listed, so anyone can check out your citation sources, which is exactly what happened here! So rather than evidence that GS is flawed, the incident shows that it works as intended. Beall the “investigator” is just clueless.
https://www.insidehighered.com/quicktakes/2015/01/21/scholar-accused-bogus-boost-google-rating