Excellent points, opusdei1972:
Earlier today I was wondering -- out of the blue -- why God's so-called channel of truth would require any outside research material in the first place. Of course, reality dictates that all such theological matters be studied, discussed and necessary refinements ascertained through human effort, not that there would be universal acceptance of conclusions reached. If the Society had not made an issue of proscribing the research done by theologians of Christendom for their own membership, this would simply be a non-issue.
It's historical for people to study what has been written in the past and then do with that information what they will, for the betterment, it is hoped, of others who read the latest renderings. At best, it can never really be anything more than flawed human reasoning.
CC