Hmm? Lomachenko has some of the tools to beat Alexis, Vilomar Fernandez and Marcel did at lower weights. It's not a given Arguello takes this
Arguello had a few issues with boxers, and Southpaws like Ganigan, Ramirez, gave Arguello trouble. P4P Arguello obviously rates higher historically, but style wise Lomachenko would pose a difficult style match up for Arguello. But saying all that I still think Arguello wins, Lomachenko himself has shown some vulnerability to tall rangey boxers, and Arguello is one of the best.
Lopez and Salido showed that to beat Loma you have to make him gunshy. I have no doubt that Arguello could use that same strategy and outwork Loma. Saying that though I also think Loma has the tools to beat Arguello with his quicker feet, as shown against Marcel and Fernandez. 50/50 fight.
Marcel's performance against Arguello was a masterclass and also a great finish to his career. Such an underrated technician.