While I agree, I think even legislation will not fix this, because what is a computing device, and who decides what is and what is not ? I'm sure apple will argue that nothing they sell should be considered computing devices. While the hacker will consider anything they can trick into arbitrary code to be one (is your fridge a computing device?)
If we go the legal route, I think the only way is to give the right to flash firmware of _ANYTHING_ that has programmable bits, and that's probably not going to fly either because lots of legislation already dictates users should be prohibited and prevented.