Also, Apple cannot name this as reason explicitly, because users may look up the details of that ruling and may find themselves agreeing with the sentiment...

  "[..] The measures will grant device manufacturers and app developers improved access to iPhone features that interact with such devices (e.g. displaying notifications on smartwatches), faster data transfers (e.g. peer-to-peer Wi-Fi connections, and near-field communication) and easier device set-up (e.g. pairing).

  As a result, connected devices of all brands will work better on iPhones. Device manufacturers will have new opportunities to bring innovative products to the market, improving the user experience for consumers based in Europe. The measures ensure that this innovation takes place in full respect of users' privacy and security as well as the integrity of Apple's operating systems."

Expectation vs reality.