I can only try, the laima ktannai is not an insult, it is only a question as to why they didn’t simply say I hold like tanna A or tanna B, instead of making it seem like a new machlokes. But nevertheless, amoraim never argued on tannaim, because of niskatnu hadoros.
But what I find incredulous is, what in the world is your hava amina that the Rebbe was not as great as any of the other gedolim of his time or our time? Are you saying Rabbi Silberberg should not have followed his rebbe and godol, the Lubavitcher Rebbe, because others disagree? What is your hava amina?
Finally, I am sad to write that the psak from Bnei Brak was worse than shidduchim. When the Rebbe’s wife passed away, a psak was issued that nobody is allowed to be menachem avel to the Rebbe. Thankfully, Rav Pam and others were wise enough to come anyway, as a yid was in tzara.