Lets take a quick look at a thrust. With regard to the sword, the tip enters the flesh typically at the point itself. If the thrust is completely linear, then the hole widens by the cutting action of the edge at the tip of the sword. If the sword is not held such that it can enter the wound in a linear fashion, then it cuts further as more edge is given access to flesh to cut. so even if the point fails to make a purchase in the flesh, a cutting edge may be applied to flesh via the thrusting action of the edge. In fact, one could thrust at a larger angle so that as the blade tip hits or misses, the edge is to follow a larger path. Also by thrusting with this larger angle, it gives a swordsman better control of the angulation one can do as an opponent attempts to parry.
Never miss an opportunity to freely concuss an opponent, if nothing else, it may keep them from doing whatever it was that they were planning to do to you .