I wrote this post up a few times and then deleted it. Let me be explicitly clear: I am not discounting the study because it happens to have occurred in an Asian country on an Asian population. However, the study itself states the limitation in applying the result to Western countries (I assumed due to dietary and lifestyle differences).
Perhaps there are individuals from Asian countries that look at this forum though. In any case, I feel like I listed multiple reasons why the study was problematic. I think the most significant is that no conclusions were drawn about low A1c levels and people with diabetes.