No training table for mad-bomber Hawaii QB walk-on?

One anecdote in the Hawaii-Wisconsin game that I found odd is that Hawaii's starting QB, who has not yet been awarded a scholarship, is not allowed to eat at the training table.
Can someone explain this to me? Why is a walk-on barred from having a square meal? Those Rudys need the nutrition more than the blue-chippers do, not less!
Can someone explain this to me? Why is a walk-on barred from having a square meal? Those Rudys need the nutrition more than the blue-chippers do, not less!