She doesn't correct his pronunciation, because hey, people did that to her when she was learning English, and she gets his meaning.

"Mhm, usually it's not meant to attack people. You're meant to get up here and show everyone how terrible you can sing, it's meant to be 'fun'. Apparently. The reason why it's attacking people is because of the second thing."

Darcy gestures around more broadly to the ship.

"We're on a haunted ship. Nobody here can die properly, nobody can leave, and we think the captain might be evil. Sometimes shit goes weird and tries to kill you."

That about covered it all, right?