For this to have really worked in getting a truthful answer Mr. Stewart would have needed to quote WT publications and teachings that call the GB the only "channel" of communication to God.
Presumptuous is exactly what the GB and any of their helper supporters are being in teaching what the role of the GB is in the JW religion.
When Mr. Stewart then asks about the "anointed" and the "144,000" and has GJ go to the Branch Organization Manual, GJ quickly responds that this publication isn't a "constitution, nor a legal document, nor a contract". Interesting that even though it is none of those things it seems quite important that the WT Lawyer wanted to keep the document from being made available in its entirety.