While I can grant the author that, if the veiled accusations about GWB's drinking aren't verified he shouldn't have mentioned it the way that he did. Perhaps it was not meant unkindly, and the author felt he needed to make the conversion story more dramatic so he played the drinking angle up in order to add to the drama. IMO, it was not an ethical way to do so and was entirely unnecessary.
Is there any real proof to the seemingly widely-accepted idea that GW was a heavy drinker prior to his giving up drinking altogether? I mean, beyond that DWI that hit the press in the middle of his campaign.... I don't like assuming that just because people act as though it's true I should just believe it without seeing any evidence myself, but I also don't want to make an idiot of myself by continuing to question it if it's a proven fact.
-penny