From a Mechanical view point. the VX should be able to be used as a towing vehicle. The weight of the trailer and tung would be the determining factor which I do not know.
The "do not tow" would imply do not place on a car dolly or pull it with the drive wheels on the ground. In our case any or all the wheels,
The reason for this may be the TOD system, but for sure is the auto trans.
autos are lubricated by an atf pump and torque converter which are both powered only be the motor. Without the pump turning your trans is turing without lube and that doesn't set well with metal on metal rotation.