Many people fixate on the canonical legal distinctions between the material and formal aspects of heresy and extrapolate from this jargonistic distinction faulty conclusions necessarily at odds with the more essential elements of faith intrinsically tied with the entirety of what it means to be Catholic. This is impossible and intellectually disingenuous.
Almost all of Traddieland fixates on the seemingly-endless dispute respecting the men in white cassocks from Gammarelli, ignoring the real and notably-larger issue: that Harlot headquartered in Rome is no longer Holy Mother Church.