Completely incorrect. If one orthodox fighter lands a jab, while another orthodox fighter is throwing an overhand, the overhand will miss every single time. There isn't a path for the overhand to land, since the left arm of the fighter throwing the jab is covering his face. If he tucks the chin, his head isn't exposed either.
I swear to god you guys don't actually watch combat sports.
In fact, you see similar situations in mma all the time. In Diaz vs McGregor 2, Diaz wings a huge right hand that Conor counters before it connects, and the right just flies over Conor's head. GSP did the same thing to Hughes every time Hughes threw a punch. Arlovski did the same thing to Fedor for multiple exchanges.
Getting out-timed means you almost always miss the strike you're throwing. If you beat someone to the punch, you out timed them. Aldo's left automatically continuing and hitting Conor on the eye doesn't undo the other million examples of the opposite happening.