Furthermore, this case is off the subject. The Rabbonim instituted the practice you are objecting to, they are not coming to justify it expo facto.
And @Rso
My point was not about not sleeping in the sukkah, it was about the weird lomdus your rebbe used to explain it, a point that was recently reiterated by rockstar.
There’s a general klal that you don’t need as strong of a Svara to legitimize an existing Minhag than to innovate a new one.