I don't see the joke. Though I do remember the Rosh crying over the subject.
The Rosh (R' Ezra Shochet) was considered an ilui in BMG, Brisk, and Ner Yisroel back in the day. Would have been considered a gadol hador by the "velt" without a doubt had he not joined the dark side...
He has a mind like few others and knows nigleh and chassidus fluently and with an intellect level like perhaps nobody else in the world.
Give him a call and let us know his answer