Running as punishment isn't bad in and of itself. It serves 2 main purposes: 1) it is unpleasant and memorable like punishment should be, and 2) it is good conditioning when done right, which is why it is used very effectively in the military (it works, contrary to the teachings of the kinder, gentler generation).
That said, it ought to be saved for the practice field. Never air your dirty laundry in public.
That said, it ought to be saved for the practice field. Never air your dirty laundry in public.