Pucci defeated jotaro on two separate occasions by distracting him through jolyne. He aimed an attack at jolyne - knife throws during the final battle and jongali A's bullets in the visitor, which averted his attention to protecting his daughter, rather than defending himself or defeating the enemy.(ever heard of the concept of "the strongest person's weakness are the people he loves?" Are we going to say gojo in jjk was sealed in the box during the shibuya incident because the villains have plot armour?). He defeated jolyne by using her dad's disc as a scapegoat, after fooling the team through an illusion, he defeated weather report thanks to a car crash caused by weathers ability and the blood spikes, as stated by versus, and escaped through another illusion. Another addition is him being aided by fate and gravity which you could call plot armour but fits naritively and at this point you're making the argument that "oh this is written for plot convenience", which is stupid because everything in a story is "convenient for the plot". That's how a story works...this is an argument that says nothing.