Join Date:Joined: Sep 2014
It's the charger that should be shorting out the data lines, not the cable. I would think that a cable that did this would pose a risk that, if inadvertently used to connect a phone to a regular USB port instead of a charger, could cause the phone to think it can draw more power than the port can safely provide, and subsequently overload and damage the USB hub.
Whereas a charger that shorts out the data lines can be used with any standard USB cable.
Maximum power ratings are a different matter, though. AFAIK, standard USB 2.0 connectors only need to be rated at 1.5A current to be compliant, but charging ports and cables (i.e. those compliant with the Battery Charging Specification) need to be rated to handle at least 5A - although, this is in spite of the maximum draw of 1.5A anyway.