By that logic, after a loss I could dive into the map and look for bugs — an area flooded somewhere, a passage missing somewhere that I never even reached, and what if... what if through that zone the opponent could have been slowed down, what if that zone existed and I would have played differently. A rematch! ...utter nonsense.
What would be wrong in your actions is that during the game you failed to assess the generated layout. Iamsamstan didn't even fully scout his own zone. And what if he had won the game? Could the opponent have requested a restart because the generation was bugged? For example, interpreting it as not finding a path to the opponent's secondary hero, through which he could have killed him. Yes, during the game I didn't discover that there was no path to the opponent's secondary, only after looking at the map later, but what if there had been a teleport here and I would have caught it, instead of dying at the Griffin Conservatory along the way...