This is the same argument videotron is using
Except it's not. From TFA (emphasis mine):
Videotron launched a feature in August of that year, enabling customers to stream music from services such as Spotify and Google Play Music without it counting against a monthly data cap
So, they're external services (Spotify and Google Play Music). If it was a internally hosted service, it wouldn't be an issue.
Having a preferential rate for one particular internet service over another (or, for that matter, having an exception for certain paid-for services) is the exact opposite of net neutrality. And from a network engineering standpoint, it means ensuring you have adequate bandwidth to upstream hosts. The idea of the internet is meant to be that it's fault tolerant and multi-homed, so if a route is congested or at capacity, packets can be routed through another path to get to the same host, albeit at a slightly longer hop path.
Well, most (if not all) Android phones by default (since Marshmallow, I believe) default to using any USB connection plugged in for charging only, and requiring you to unlock the phone to change that option each time. And before that (since at least Jellybean, I believe) don't expose filesystem data until the device is unlocked. So that gets you some modicum of safety. And with the device encryption turned on, it won't even get into the OS without an unlock code. So provided they're not going to physically dismantle the phone, or other such destructive measures, your data is pretty safe. Apple... well... not so much.
Of course, whether the courier "loses" the package en route is another matter entirely.
Torque is cheap.