@BalrogDeMorgoth No, the point is, going by the quick flash of what you are perceiving, you are going to believe you are being stabbed. Both fighters didn't see everything that was happening(both grabbed by the neck from behind), but that bit of stimuli they received was enough to make them...
It always bugged me a bit when(like on page 5 and 6 here) character models are just reused? Like 3 panels in a row you have the same image of a character pasted to look like they're moving into the school? It happens a few times later on in the story, if I recall.