Sabermetrics isn't about OBP. It's about exploiting a particular aspect of baseball that other teams undervalue. In Billy Beane's case, it was OBP. It is now widely recognized that OBP is important, so OBP is itself no more Sabermetric than my left testicle. So any argument that uses a team with a high OBP as an example who has this amazing understanding of sabermetrics is baseless.
Using tiny sample sizes of one player in rookie ball as evidence of anything is stupid.
And perhaps the most telling reason that this thread is pretty much filled with garbage, is you're here agreeing with everything he's saying.