> you keep re-presenting the same tired argument that this is about a single firmware tied to a single phone
I mention that only when people assert incorrect facts about the case. Correcting someone when they're wrong about a matter of fact does not imply any legal opinions.
About your point: there's a difference between "If I agree with argument X in this case, I should agree with it in that case; however, X shouldn't apply in that case, and I can make no principled distinction between the two. Therefore, X can't apply even in this case" and "I agree with argument X in this case, but not in that case; here's a principled distinction between the two; however, since it might lead to someone misinterpreting it down the line, I'm going to rule against X."
The first is a concern for precedent that I'm fine with, the second is not. My understanding is that judges will lay out the reason X applies here but wouldn't apply in the other hypothetical, which makes the concern about it being used as precedent later unwarranted.
The form of the argument here seems to be the second. "Yeah, this one is mostly fine, but we're fighting because of precedent. If they can force us to sign software and install it on a single phone, who's to stop them from forcing us to put software on every device we sell?"
And the clear distinction between the two is that one is only being put on phones that have a warrant (and belong to the government, to boot), and the other would also harm innocents. So the proper response should be "comply with this order, but specifically because of the fact that no innocents are being caught up", and that way it doesn't set any harmful precedents.
Or if you think there's a different reason why this case is fine but the general case isn't, then that itself is a reason for the general case not to have this case as precedent. Whatever those reasons are, make them explicit. If Apple puts those arguments into the court record, and the judge explicitly says "it's ok for X but not for Y",that defeats the harmful precedent.
Am I misunderstanding anything, or do we just disagree?