Maybe. Probably splitting hairs, but I’d say diet is more about discipline (i.e., choices and portion control) than work ethic (i.e., true commitment to developing one’s craft). Because of his occupation, you could say eating right should be part of his commitment to his craft, but none of his choices seem to have impacted his performance on the field. That stuff will start to factor in more as he ages, and he’s acknowledged that will need to change. And I trust him to address it. Not sure why anyone would doubt him on that.