2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/22426We prove that previous claims of observing a direct superfluid-Mott insulator transition in the disordered J-current model are in error because numerical simulations were done for too small system sizes and the authors ignored the rigorous theorem.1 page, Latex, 1 figureDisordered Systems and Neural NetworksComment on "Phase Diagram of a Disordered Boson Hubbard Model in Two Dimensions"text