It was a hypothetical 'what if?' question. To my best knowledge the governing body has never advocated suicide in any circumstance, not even in the case terminal illness.
As for the GB admitting that they are fallible? That would be nice, but you'll have to show me a publication if you want me to believe that. If the GB thinks they are fallible, then why do they require JWs to conform to every little fiat they issue from their headquarters? I mean, they might be wrong ,so who are they impose their speculations on others? If they are fallible then why does any JW who disagrees with them, even on minor doctrinal points, get put before the holy inquisition (otherwise known as a judicial committee) who asks him to recant his heretical views or else face disfellowshipment? The statement "We are fallible." just doesn't follow from their behavior.