The ratings themselves are in a weird pattern, but there's still general assessments you can make (some of which you already did).
excellent speed combination, takes walks, much better vs left which is the wrong side of the platoon, position unclear but is probably one of the less important ones, not enough power to be DH or 1B so you're hoping he is a high-range LF or somehow a RF in which they were hiding his defensive arm for some reason. The 73 OVR is probably accurate but could easily be less, projects as a ML backup / platoon / PH-PR. There's a dozen of this player available in spring training free agency for cheap, so I typically don't bid any higher than a million on this type of IFA player so that I can save my cash for a pitcher or whatever else might be better