The size of an obstacle is a fact; whether it feeds you or finishes you is a verdict.
The meaning assigned to an obstacle sets the emotion, the emotion sets the move, and the move decides whether ground gets taken or handed back. Fortified walls read as a death sentence put a person in a state where their own strength shrinks; the same walls read as already abandoned by whatever was protecting them raise appetite.
Two men rested their appraisal on a reference no scouting could supply, that Yahweh was going up with them, and that reference set the state, the state set the counsel, and the counsel was to move. The majority's certainty had never been tested; it was accepted and then obeyed, and obeying it cost a generation the land and buried them in the wilderness they preferred to it.