The vast majority of dry pasta/noodles are prepared by boiling water first and then adding them to the already boiling water. However, the instructions on some types of Chinese rice noodles (eg. 南昌拌粉 Nánchāng bànfěn) say to place them in a pot of cold water, bring the water to boil, and then cook for X minutes.
Is there a culinary reason for this? Or is this just a shortcut for soaking before cooking?