I know we haven't heard from Brady on this yet but I seriously doubt (1) he would have destroyed his cell phone without checking with his lawyers; (2) any lawyer would have advised him to destroy the cellphone without backing up the DATA somewhere; or (3) Brady would have destroyed the cellphone without backing up the DATA against his lawyer's advise.
If I'm wrong, then either Brady or his lawyers really messed up badly but I doubt that's the case.
We should probably all just reserve judgment until all the facts are in. If only for the sake of our collective mental health.