We can hardly equate the poor man in the story with the Dalai Lama. One assume the man is a well....a man. But the Dalai Lama is a Buddha who is an embodiment of all the qualities stated in the story..of compassion, openness, praise, smiling always...well almost and of goodness. If we then extend this through and reconcile it with the ban; then we are either stumped or become wiser. What do we choose? Stumped, frustrated, become angry, fight; or do we become wiser and respond to the ban with stronger practice, show real compassion and grit our teeth and continue?
The latter is certainly the better choice instead of asking the Buddha, "Why there is a ban?"
With folded hands.