The FBI made their success known in official documents. Are you suggesting they flat-out lied to the court?
I think there needs to be a reasonable balance here. I'm all for privacy and security, especially today when there are hackers attacking our data from all sides. But that is a double-edged sword. While our data may be safe and secure, so is the data of a terrorist bomber, kidnapper, or pedophile. So I am also all for national security and public safety, as well as supporting efforts by law enforcement to stop these plots.
The problem with the process that the FBI used to access this shooter's phone is that it took a long time (excluding all the legal ramblings on of course). That long timeframe won't work when a terrorist parks a car full of nuclear explosives in Times Square or next to your kid's school, and the suspect in custody has the abort codes on his iPhone.
We have to strike a balance. Total impenetrable security where devices are beyond the reach of legal, lawful searches by law enforcement or security agencies is not the answer. But neither is having 24/7 access by the government, obviously, because such access has clear privacy implications and is ripe for abuse. Now that this matter between the FBI and Apple is settled for the moment, I'm hoping that Congress will address this issue and find a sensible middle ground.