No he gave the duress PIN while implying it was the correct PIN. That was the crime. Also they only caught him because he bragged that it was the duress PIN after the wipe.
Yes, the difference is you do exactly what they say, you follow legal orders to give your fingerprint, or also it could be "take a picture of you to unlock". I'm sure eventually the govt will make a new rule and a judge will say "you have to tell us in detail if we give you legal orders and it won't do what we think" or something like that.
