Re: It doesn't matter...
"The reality is that unlocking the phone of a criminal/murder is mandatory and appropriate."
True that... But in this case the phone belongs to a third party, that did give permission and voluntarily turned over the password they had (The suspect's employer turned over the phone's iCloud password).
Then the FBI changed the phone's password so it could no longer sync to its backup, and locked up any data more recent than the last update in the phone.
And now they want Apple to unfix the fix the FBI themselves used to lock the data away from themselves so that Apple'd have to fix it.
Does look a trifle odd, eh?