I believe they're showing that Best Buy has intent to work with the FBI beyond what they say, and therefore can't be trusted regarding their public statement. I

I believe they're showing that Best Buy has intent to work with the FBI beyond what they say, and therefore can't be trusted regarding their public statement. It isn't enough to draw any conclusions, of course, but should cast doubt that they're being honest in their public statement. The average person probably already assumes they aren't being honest, but a journalist needs a reason to have such a doubt.