I am not going to argue with your experience, if it works for you it´s all good

The long side of the awl may only have one sharp straight line on it, but the tip have a few angles to it if looking at it from the tip, making it work pretty well for drilling small holes. Sharpening the longside (wich you also did with a caramic rod), not drilling on a weak part of the wood, twist & pressure, there are many factors that can save wood from not splitting. Even when drilling with a drill bit. The point may help to get the hole started, but you argued it helped with not splitting the wood.