That would rather defeat the point of this whole fake political-judicial spin effort. Teh terrorists already destroyed their personal phones that had actual terror secrets. These work phones, which could have been confiscated by San Bernardino County at any time, are vanishingly unlikely to yield months-old information of any sort.
They already retrieved a ton of info from a month or so old iCloud backup. The FBI has a good idea what might be on the phone, but they aren't saying what they already found.
