I think this article accurately identifies Apple's moves towards a more closed ecosystem, but I don't think there's any particular reason to believe that "the future is open". Unlike in the past, Apple has a much broader ecosystem, to the point where you can use only Apple-approved products and services for almost everything you would want to do, so interoperability doesn't matter as much. Additionally, as computers have become more widespread, the demand for customization has declined significantly. Sure, there are still people that want to repair their computer, or install Linux, or customize it in some other way, but as a share of the overall market, it's a really tiny percentage.
As long as smartphones remain most people's primary form of computing, I don't really see Apple beig hurt in any significant way. They've effectively created a monopoly on iOS software, so that developers have to put up with the experience, no matter how bad it gets, if they want to make any money. And until some major new technology comes along that Apple doesn't have, it doesn't seem like there's any reason for consumers to abandon Apple's ecosystem in favor of something else.