You are omitting the fact the FBI conveniently announced they wanted an extension as they had found a third party work around the day
before the hearing that would have set the precedent. You don't do that if you have enough evidence to convince a judge that your request is reasonable.
If the terrorists had the present of mind to destroy their personal phones why would they be stupid enough to leave something related to the crime on a work phone?!
As expected with anyone with an actual brain in their head there was nothing related to the crime on the iPhone. The only thing that happened was $1.3 million (on the software itself) that could have been better spent was wasted and showed that the part of the FBI involved in this had less intelligence than a bag of hammers. As Cliff Stoll related in his book
Cuckcoo Egg the quality of regional FBI offices varies from get the elevator to get the shaft.
Never mind Microsoft, Facebook, Yahoo!, Twitter, LinkedIn, Amazon, Box, Cisco Systems, Dropbox, Evernote, Lavabit, Mozilla, Nest Labs, Pinterest, Slack Technologies, Snapchat, and WhatsApp were all on Apple's side.
The American Civil Liberties Union, Electronic Frontier Foundation, Access Now, the Center for Democracy and Technology, and even the United Nations High Commissioner for Human Rights also sided with Apple.