I never said it was unbreakable. Logically, any encryption scheme developed by humankind can be cracked by humankind, given enough time and effort. But if it cost $1M to crack older and less challenging encryption on an iPhone 5, who is prepared to spend the money and manhours of effort to crack ever increasingly complex encryption? Keeping in mind you're also chasing a moving target as device technology and operating system capability continually develope.
And given that cost and effort, what makes anyone think a retail consumer data recovery company is going to be the one to develop or have access to it? Tough to design a financially successful consumer data recovery company around such enormous costs for product development.
So, I would argue that for the average user, holding out for an affordable solution from a consumer user based commercial data recovery company link drivesavers is essentially pointless.
Drivesavers started back in MS-DOS days along with tools like Norton Disk recovery, allowing people to recover simple non-overwritten drive sectors erroneously marked as deleted in the master file allocation table. It has honestly never been terribly sophisticated technology, and there are several open source Linux tools that will do just as good a job, within the limitations of simple human-readable file recovery (and on simple short passcode encrypted data where a easy brute force decryption approach will be successful). Recovering sophisticated and strongly encrypted data, encoded with dual (or more) source decryption keys is a substantially more difficult problem.
If interested in iOS encryption, the Apple white paper is publicly available, and gets updated as iOS develops - https://www.apple.com/business/docs/iOS_Security_Guide.pdf