The FBI initially wanted to get in by having Apple build a backdoor that could be used to defeat the security on ANY iPhone-- that's the bad thing, and it's still a bad thing.
And re: "thanks for the downvote"-- stop digging when you're in a hole.
Good security will keep out anyone that does not know the secret. That includes "owners." The concept of ownership is irrelevant to the design of a secure system.
I made this post last day [1]. It received 3 votes.
If you or I asked Apple to recover data from our phones, they'd just act sympathetic until we went away. Perhaps walk you through some of the backup options.
Virtually all the relevant phone data and metadata are available from other sources, including call, message, and email data, and backups until six weeks prior to the attacks.
Apple could have provided a data extraction on request, as it has done previously. This wasn't what the FBI had demanded.
Due to the FBI's own actions and direction, the data on the phone has quite probably already been destroyed.
Legally, my read is that the request has few or no merits.