While many leaders in local churches are sincere men of high moral character, the fact is that a larger percentage than we think are guilty of crimes against children and other adults including their spouses.
Seriously? A 'larger percentage than we think?'
This was just published last month, and it looks like one of those self-publishing jobs...which is fine, but it looks like something by someone with an axe to grind. So naturally he will want to include the most salacious and most easily misconstrued tid-bits.
Going from the information you gave, the list is from an unnamed source's notes from a leadership class. And as you said, you have no memory of such a list, so this 'class' was probably an individual thing from something like a Sunday School or seminar.
I very seriously doubt that even if the leadership in a particular place
are wolves, that they're removing their sheepskins in their leadership classes. So I wouldn't be so quick to conclude that the 'covering for' and 'taking blame for' means for their sins and crimes. Most likely they're saying one's spiritual leader should be shielded from unjust criticism and other kinds of defamation.