It's the point made by J. Passan: MLB players have already proven they are the best; not so with owners: there are plenty of people and conglomerates out there perfectly capable of running professional sports franchises; and by implication, when franchises change hands, in some cases they improve dramatically (e.g., the present LAD group as opposed to Frank McCourt). There are also cases where owners make no effort to improve their product (Marlins, Baltimore, Pittsburg), but rely on the earnings of others to sustain them. Yet if I'm a .150 hitting 3rd baseman, I can't take .100 points and 20 HR from Devers to prop up my career; nor if my fastball tops out at 80mph can I borrow 10mph from Ohtani.
(I agree that the argument may well be dumb. But what else, alas, are we going to talk about?)