Seeing "to allow" and "their own" being used in that way in the title is a disturbingly dystopian sign of the times. I don't think things like this should ever need to be explicitly allowed, in much the same way as one does not need permission for many other things which are naturally assumed to be so. For contrast: "Government to allow people to use their own brains."
Hell If I had my way I'd add a "right to root" in the Constitution itself. You should have control over your hardware, period.
You could argue that any changes to the software are then the fault of the user, which is a reasonable point of view. But what if someone comes up with a mod that makes your wifi better by breaking transmit power rules (at the expense of others). Lots of people might use it, and then there are resulting widespread interference problems. Difficult to identify culprits, possibly too many to prosecute etc.