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In any rate, it's always been a fools errand to try and boil run production down to just 1 metric in my opinion. Hitting for average, hitting for power, drawing walks, & running the bases are just different skills which are largely independent of each other.
By trying to combine everything together, by its nature, the overall picture gets muddied. Consider for example, the importance of accounting for BABIP randomness. A good (lucky) BABIP can inflate ALL of these combined metrics. Even the "better" metric wOBA still assigns a flat run value per hit - not considering whether it was luck in the first place that the hit fell in. Simply judging whether a batting average is "lucky" or not requires a good deal of analysis on its own (batted ball data, StatCast etc.). So you generally want to analyze contact skill separately, in a vacuum, to prevent that randomness from bleeding out and polluting all your other data.
It's the same logic that dictates why you shouldn't use the OVR rating to pick your players. You should be looking at an array of different statistics that describe individual skills, never just a single one.
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