Dew,
You are correct it is not a direct comparision, it would have needed to be much larger if it attempted to compare the two active drugs. It was however a double blind, randomized trial that consisted of one patent trial and four arms. The four arms were placebo, BG (BID), BG (TID), GA and placebo.
BG out impressively outperformed GA when they were both measured against the placebo in all counts so far.
I never mentioned (you must have misread) that BG beat GA in a stat sig fashion, but I did come to the conclusion that BG is a very impressive drug at this point.