I kind of do think there is something wrong with modern orthodoxy.
It seems to me to be infected by the very things that mdd accuses. I am disturbed when I see people relying on rishonim that have not been relied on for hundreds of years. That is not how we do it. We follow our mesorah, as it has developed. We don’t do new things.
I really don’t care whether something is d’oraisah or d’rabanan, or whether a strict reading of the Rambam allows or prohibits it. I care about what frum jews, particularly my personal rebbeim and their rebbeim, have been doing last year, the year before, and the hundreds of years before.
I am far more convinced by pointing to a posek from 100 years ago, than 1000 years ago.