It is dangerous to connect them too thoroughly, despite the correlation.

[He has to give out the warning, crossing his arms thoughtfully as he does so. He also doesn't want to dwell on Tenka being gone (still, so he's finding it harder and harder to believe he'll be back), so he focuses entirely on the business aspect of things.]

They were not glitches. They were ghosts. Of that I'm certain. [Sousei's not much of an exorcist, no, but he knows a ghost when he sees one--he can tell that much.] But that this has happened to my sense of hearing twice is nonetheless worth being aware of.