I wonder whether today they still claim that they are God's spokesperson? He did not answer that question. Although he said it would be presumptious of us to claim that we were the only ones he did not factually say that they were making this claim in the first place.
I could not find any reference to the claim that they are God's spokespersons in the online library. In these publications regarding God's spokesperson they refer only to biblical persons who were selected by God to speak on his behalf and as such they were 'inspired'. They may have dropped this idea many years ago without clarifying the change to the r&f because it serves to their benefit.
He qualified his answer by saying that they were only trying to fulfill a specific role being that of FDS, which is not the same as being God's spokesperson.
Even then when speaking about the FDS, he did not make the claim that the Governing Body was appointed by Jesus as the FDS, only that they were acting in the role. I wonder if this is because the GB members believe that as an individual he cannot make such a bold claim and it is only the FDS itself that can make the claim because it exists outside of each of the members.
So in answering the question it appears that he was constrained because of his position as a GB member and what we see written in the publications is different because it is the FDS speaking and not the GB members.
I'm probably not making much sense but when it comes to exploring the workings of the organization it is a very difficult task.