The failsafe for the failsafe is the exact same as a vehicle with hydraulic power steering...there is no longer power steering. Same as if the engine died while going down the highway with hydraulic, you would be 'strong arming' in that situation as well.
Precisely. If you had researched it, you would know that the shaft is solid all the way through with what amounts to a strain gauge to measure torque on the wheel and a closed feedback loop to apply force to reduce that torque. The sensor is electronic, not purely mechanical. Other than that, it is fundamentally the same implementation and failsafe as 95% of the vehicles on the road today. There are people who think that electronic sensors are bad, but they are often the same ones who think carbs are better than fuel injection.
And where is the evidence about the brakes having any relation to the steering? Yes, it has a connection to the CAN bus. Where it reads the vehicle speed to allow for clever tricks. You could just as easily ask why the radio needs to know that the brakes are on because it is also connected to the CAN bus. Or why the engine computer needs to know that the turn signals are on.
