Why did Minho insist the runners go out in the Maze

Minho insists that he and Thomas head out into the Maze. Thomas argues. The code is far more important. Minho feels that this may be the most important day to be in the Maze. He thinks they should spend a night out there.

"Minho slammed his hand against the table. “That’s bullcrap, Thomas! Of all days, this might be the most important to get out there. Something might’ve changed, something might’ve opened up. In fact, with the freaking walls not closing anymore, I think we should try your idea—stay out there overnight and do some deeper exploring.”