Well first off, at least for Android, they're totally wrong about "BLE doesn’t work unless the phone is turned on and the Tesla app is open and active on the phone." Dunno about with the iPhone the guy's holding, but definitely not true of a proper Android build. I can reboot my phone and not touch a thing (eg, launching the Tesla app), and I'm still able to unlock my car by walking up to it. BLE is usable by background services, which Tesla has properly implemented. I *believe* it works the same way on iOS as well, but less sure about that.