This kind of thing can just slip right by

From here, writing in reference to CS Lewis, Murphy says:

Not to mention that he wasn’t a Pastor or holding some office requiring Christians to really heed his words, he was an entirely different category.

What are we, Roman Catholics? Yikes. Neither John Piper nor anyone else is a member of some sort of Magisterium.
Let this be a brief reminder that we need to examine carefully our wording, and these days it's really important not to put elders and such on a pedestal like that.