That's an effective point of view. Let's ignore the reality of what people are actually doing in their cars, and forget about doing anything that might work within that reality to increase safety.
The fact of the matter is that mechanically, cars, especially normal cars that I'd label as appliances, are becoming ever closer and closer in build quality and reliability. If a customer is looking at an Accord, a Camry and an Altima, and the Camry is the only one that doesn't integrate well with their smartphones - the piece of tech that people are married to more than any other and they will use absolutely every time they set foot in the vehicle, you'd be daft to think that won't sway buyers.
A car can also turn into a weapon if you decide to fiddle with the infotainment system while driving. I wouldn't mind the government to lock out some features if the car is moving in order to save a few lives. People are already killing others by texting. Last thing we need is some air head playing with the center console going 70mph. I got enough crap to worry about while driving.