ZTE Mobley Hotspot Plugs Into Car Data Port

I am very curious as to why any non-diagnostic device would plug into the OBD-II port on any car. It almost seems like there is some kind of data collection going on here that the consumer is not being told about. They could have easily made this device plug into the on-board 12-volt outlets. I would personally never plug anything except a scanner into my car's OBD-II port, that's what it's meant for, and that *should* be it's only function.

I understand the devices released by insurance companies, that monitor your vehicle acceleration, usage, top speed, etc and help you get lower rates, however this is just a very simple hotspot device, with, as you stated, no special features/functions at all. I would never consider a device like...
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The OBD-2 port is a good use because it has power and usually isn't used for anything else and has backward compatibility to 1996. Many older cars don't have USB port built in and most only have one 12 volt outlet so using it with a LTE router means that you can't charge your devices or use it for anything else.

There have been other companies that offer similar solutions via the OBD2 port, Verizon sells a device (Delphi Connect) and T-Mobile is highlighting an Indiegogo device (Vinli) and it makes me wonder why it took so long for someone to think this up. It is easily transferred between vehicles which also makes it more useful. Now if they can only make one that handles LTE for all major carriers...