There is still the issue of being able to see. Somehow, between the first and the second petitions to the Lord, the brother of Jared has slightly shifted his request. The first was that they be able to see to steer. That is no longer a question. Apparently, just as they did not need the air system if they could open doors in a calm see, the issue of light was not a great concern when they could similarly open the doors simply to allow light.
The brother of Jared may have also understood that the Lord would do the steering through the winds and the ocean currents, so that the necessity of a human pilot was gone. Nevertheless, there was the human need for light to see inside the barges. That problem continued to exist, and the brother of Jared now brings this very specific question to the Lord.