Did they just turn on the ability to wave your hand over the phone (the 2013 X) to show the time and any alerts you have, as the 2014 X does? It seems to be happening now on mine.
This. I've had my OG Moto X since January of 2014 and I've been able to do that for as long as I can remember.You've always been able to do this. The sensor is to the left of the earpiece