I don't really know what "throwback" means. I never heard Willi Castro referred to as a "throwback" player even though he's adaptable, excels in different roles, runs the bases well, gets on base, etc. This feels like the coded language where white players are "scrappy, hustle, gritty, hard-nosed, smart, heads-up" while non-white players are described as "gifted athletes, toolsy, talented, natural".