Saba,
“Perhaps I am missing something here and I am new here so maybe I need orientation.”
There are no “groups” here. Everyone is entitled to their opinion as long as its with respect etc I think the Mods will let it through.
As for the “relevance of zaken mamreh” Zaken mamreh proves you can be a Talmid Chacham and still go against the Torah.
Many true Gadolim have questioned Rav Tendler’s actions and the part of Igros Moshe reliability, these are not just “rumors” no one here is speaking on their own terms. There is nothing wrong with knowing if one can rely on that volume or not.