Like I said in another post, is a new single purpose cable a solution for a missing dongle if I still have to carry the old cable with me too? Great, I don't need a USB-C to USB-A dongle, I just need both my USB-C to lightning and USB-A to lightning cables. It is the same problem, just shifting around the inconvenience.
And if USB-C is so great and the future of all tech, why isn't Apple moving to it on their mobile devices? In my mind the problem isn't the specific technology used on any of these devices. The problem is that the devices aren't using the same technology between them.