My take on Penn State's reaction

[Billso]

MM has testified multiple times that when he spoke with them that he used the term "sexual", even when he spoke with JoePed.

That is correct, but Schulz did not deny that in his testimony. Curley did, which to my eyes puts him in much higher jeopardy. However the key point of the ESPN article is the case hinging on the legal definition of perjury, which differs from what most of us non-lawyers assume it to be.