Was Yi's wound simply bad luck, or was he an obvious target?
Short answerHe was exposed while observing a close-range fight, so both deliberate targeting and ordinary battlefield fire made a hit plausible.
NotesYi's desire to see and understand the battle placed him where enemy fire could reach him. Engagement distances were short, commanders were valuable targets, and even unaimed fire made exposed observation dangerous. His wound at Sacheon therefore reflects his command style as well as chance.