It's usually used to quash disagreements. As in "check your privilege." It's often used as a way to categorically exclude people from a discussion, and this sense is the "angry" sense. So yes, it's less applicable because it's used as a shortcut to avoid forming a real understanding with someone else.
The definition used in someone's essay means ass all to me. It's he definiton uaee by the common man, if you'll excuse my microaggression.