I have a few problems with this theory. (1) Vague insinuations don't explain the extremely specific details and timelines that Bloomberg published. (2) Bloomberg and the administration are at odds with each other. (3) So far the National Security echelons in this administration (and in the UK too) are opposed to the story in no uncertain terms. (4) Bloomberg has in the past written articles about Apple that have been proven false or at the very least extremely overstated.
1) Hardware security researcher Joe Fitzpatrick, who is one of the few sources Bloomberg publicly identified, noted that details that were even remotely technical appeared to have been lifted from from conversations he had about theoretical hardware implants work and how the devices he was making to show off at Black Hat two years ago worked.
3) The speculation is that it was just a few specific people in the US National Security apparatus who were sources and these people were likely not top-level.
4) Except it was not just Apple that they claimed were affected. They also claimed Google, Facebook and a number of Fortune 50 companies had also been affected.