It suits many to think the GB 'may' have done this or that, 'could' have learned hebrew and greek, 'probably' translated it from the originals (originals????), as this aligns to their preheld adoration of everything GB.
To even consider an alternative would undermine the already shaky belief system that has been built, torn down, repaired and painted over, over the last century.
Unless it is specifically stated by the GB, the next best thing is to conjecture something favourable and put all your trust in that being the most likely thing, and if anyone thinks differently then prove it!
Splash