It matters a lot in that it makes the difference between whether you can get a court injunction or not, and in that if there are sufficiently high levels of dem

It matters a lot in that it makes the difference between whether you can get a court injunction or not, and in that if there are sufficiently high levels of demonstrable illegality, a government would lose political legitimacy and citizens/military might simply cease obeying it. I am not taking a position on this particular policy being legal or not, it's too technical for me to know about and it's not something I want to research.