It's difficult to know just how "official" this guy's comments were. I think we've all encountered Witnesses with a measure of seniority who tend to run off at the mouth with their own private interpretations. When I was first studying, an elder referred repeatedly to God using anti-matter after Armageddon to remove all the bodies and buildings. Others have similarly talked from the platform of their own wacky theories.
It's possible that, since no one else seems to have heard this comment at a convention, this guy was getting carried away with his own sense of self-grandeur. "Jehovah is USING me right now!" Speakers like that probably do it with the certain knowledge that people will be talking about HIS talk for months.
"Kingdom control" is a phrase the WTS would be trying very hard NOT to use. It's fascinating, and another indication of the bubble circuit and district overseers live in, but I don't think it indicates a trend. My view only, but many thanks for the recording.