Well some reasons for training the Long pole or Short swords is this. If you are in street fight an find a stick or tree branch some of the strength and skill you retained from the Pole form can be unleashed through your stick.
Also if your outside your home and some comes to you with a knife or baseball bat trying to attack you have an Nine foot pole could be useful...
Personally, I find my escrima training much more adaptable for self-defense with improvised weapons. Oddly, the long pole has actually done more to help my empty hands. It's improving my power and focus.
And, it's also been very useful in improving my skill in skimming the leaves off my poor old mom's swimming pool.