Ben couldn't argue with his father's logic. It would be something he would need to know, lest he plan on using Jedi mind tricks to con his way aboard freighters until the end of time. Clearly, Snoke didn't consider it a valuable skill - not when it might lead to escaping under one's own power.

"The Force should make it easier to learn." He hoped out loud, and then backtracked to avoid a potentially condescending stare. "...Or make it easier once I do learn."

He had far more confidence that he could clench his fists and pull a ship out of the sky than he could fly it out there in the first place.