Curious timing — If a company is making bold claims and amplifying positive soundbites around its business model, it's always worth checking whether the firm has a shareholder meeting coming up or, as is evident in Apple's case, an antitrust hearing... on Monday.
On July 27, the House Judiciary Antitrust Subcommittee is expected to investigate Apple alongside Google and Facebook over marketplace competition. So this "study" is more of a PR strategy to pacify legitimately unhappy developers and antitrust observers, and less of impartial research.