But Baal was just a companion that Jin did not wish to disturb right now. Apparently, Moloch had told him that Baal was doing something awfully secretive that was in preparation for the Celestials should they ever try to attack.
However, that was not the main reason why Jin did not wish to call for Baal to pit a fight against the Void Beings. To his knowledge, Baal's powers were more or less being restricted after being captured by yours truly. So, even though the Dungeon Supplier believed that he would already have recovered most of it when he had reached the new 'Grade 4', Jin still assumed that Baal was not at his very best. Combined with the fact that the previous situation in Demopolis kind of sap his powers away.