If the GB is the F&DS, they only realized it in the last 10 years. That fact alone leads me to believe that they assumed the name w/o due appointment by the Master. They claim to have been appointed in 1919 after his return. HELLO! The slave Jesus referenced was appointed BEFORE he left (Matt 24:45). Furthermore, they did not take control over all his belongings until 2013 when they began to take ownership of all the KHs. There is speculation that they proclaimed themselves as the F&DS just for this purpose. As well, their actions demonstrate that any food they 'prepared' lacked genuine spiritual nutrition, something expected of a truly faithful slave. Not only was much of it wrong, it had to be recalled and served agin countless times.
As for discreet, they are very secretive - but not discreet.
In biblical times, a master with slaves might travel to do business and leave his slaves to continue the operations of the estate. The most responsible, loyal slave would naturally be appointed in the master's absence to oversee household and local business matters. The slave's discretion was a must since enemies of the master might seek to take advantage during the master's absence. The discreet slave would not reveal how long the master would be away. As far as the enemies (and the slave) were aware, the master could return at any moment. The slave would never march around saying that the master was coming home on a certain date. He kept his head down, did his work, thereby confusing any nefarious plans by the master's enemies.
In contrast, the GB has trumpeted for 143 years that the master was arriving at any minute. They even pinpointed specific years and the month that they were certain would herald his arrival. When he did not, they beat any fellow slaves who spoke out about their lack of discretion. The false ideas gave enemies of the master lots of fuel to ridicule Christians in general, painting them with a broad brush. In 1925 and 1975, many fellow slaves left the household, convinced that WTC (and the GB in 1975) were clueless charlatans, despite being dogmatic.
In the last 143 years, WTC has received billions in donations and had access to unlimited free labor. They have little to show for it other than some buildings (in severe need of maintenance), off-shore bank accounts, and countless broken families who cannot even speak with one another due to shunning. CSA consumes the majority of their discretionary spending as they settle more and more cases out of court. We could go on and on but what is the point? Back to the question in the post...
Is the GB the F&DS Jesus mentioned in passing? Let the reader use discernment.