I think what I found a bit annoying about that section was how Koenig basically dismissed the notion of racism having any bearing on the outcome, and then proceeded to list several occasions where problematic attitudes towards Adnan's culture and religion manifested themselves in the trial, including the opinions of some of the jury members. It just felt a little weird her initial statement that racism didn't influence the events in the court, and then gave several examples where it seemed quite plausible that it could have, there was a bit of a disconnect between her attitude and the evidence she brought up.
Anyway, apart from that slightly bizarre example I agree with you insofar as I didn't find anything particularly objectionable about the whole thing in terms of race, I think that there were flaws in the presentation of the case, and the absence of any comment from Hae's family or the larger Korean in Baltimore, while completely understandable, makes it a rather one-sided affair.