There are rules in place to not use military assets for commercial purpose, as they belong to the people of the country. Many have circumvented them in the past in the same of search and rescue, and then start commercial charter. I am sure someone will look into the approval for this one, and then have a second thought. I dont think such a venture would continue for too long.
Anyone who wishes to have a soft image for Pakistan should go lease a plane, appeal to CAA, and run this service privately.