No, the reason they exist is to rule on what the law says, even in very murky situations. But I have read no credible case that there is any statement in the C

No, the reason they exist is to rule on what the law says, even in very murky situations. But I have read no credible case that there is any statement in the Constitution or elsewhere, which they could go by to determine the standard here. The fact that RGB says "However one comes out on the legal issues..." looks like evidence that, at some level, she knows there's not a legal argument here to arrive at the right result. Because the right result is surely to not do things the way we do now. Probably, some kind of multi-rep district system is the right solution. But, that's not a thing the courts can fix, or should attempt to, and they know it.