Have a look:
Bloomberg : How Apple Alienated Mac Loyalists
http://www.bloomberg.com/news/articles/2016-12-20/how-apple-alienated-mac-loyalists
Interviews with people familiar with Apple's inner workings reveal that the Mac is getting far less attention than it once did. They say the Mac team has lost clout with the famed industrial design group led by Jony Ive and the company's software team. They also describe a lack of clear direction from senior management, departures of key people working on Mac hardware and technical challenges that have delayed the roll-out of new computers.
While the Mac generates about 10 percent of Apple sales, the company can't afford to alienate professional designers and other business customers. After all, they helped fuel Apple's revival in the late 1990s. In a stinging critique, Peter Kirn, founder of a website for music and video creators, wrote: "This is a company with no real vision for what its most creative users actually do with their most advanced machines."
If more Mac users switch, the Apple ecosystem will become less sticky—opening the door to people abandoning higher-value products like the iPhone and iPad.