I'm not taking a side here, but not every law has to extend to the general case for it to fix a problem. If we required that, there would be almost no laws.
Kind of reminds me if the old joke:
A guy asks a gal if she'll sleep with him for $10M. She, says yes. He asks what about for $100 and she is offended: "what kind of woman do you think I am!?" To which he replies, "we've already determined that, now we are just haggling over the price."