Just because you move in a different way than most people doesn't make it parkour. That would be like saying swimming is parkour because you flow through water.
swimming can be parkour! what if it's the quickest/most efficient way to get somewhere? what if you need to chase someone/something that's in water, what if you are being chased and the best escape is into the water? what if 'point a to point b' goes through water?