Pragmatism is the name of the game, later treatises may talk about honour or "proper" ways of fighting. And emphasise showing off skill rather than surviving. But for me, pragmatism always wins out. It's nice doing the fancy stuff but you can't improve your fencing if you're dead.
Here are some plays that have a bit of WTF, he cant do that, can he.
Helmet in the way? No problem.
Just lift his visor and stab him in the face.
[33v-a] ¶ If I see my thrust cannot penetrate his chest, or his face due to his visor, I can lift his visor in order to thrust into his face. And if this does not satisfy me, I can apply other stronger plays.
Cheap shot.
I think this one is self explanatory.
I strike his testicles with my right foot.
Pragmatism is king (almost literally as it wears the crown). Fancy and showy skills come in more when killing your opponent becomes a bit of a faux pas. But Fiore is very much incapacitate by the shortest route possible.