I'm so skeptical whenever I read something like that. Even on small scales, deceit and conspiracy are rare. They seem even more unlikely at a company with the scale, success, and talent of Apple. Coordinated corporate espionage would be a Really Big Deal, and something I doubt Apple would risk over modem performance. (VW's diesel scandal is the closest thing I can think of. Of course, there are other examples in finance like Enron.)
Maybe I'm biased from my experience at Google. (I know they're a favorite HN punching bag, but we try really hard to do the right thing regarding PII, privacy, ethics, etc.) I can't imagine anyone with the power to condone a trade secret stealing conspiracy at a company like Apple would do so.
"Never attribute to malice that which is adequately explained by stupidity"