1. The hubris of big companies deciding that they know what you want better than you do. I used to chide Microsoft, not that they were listening, that their motto was "We will optimize you (if you change your life to do things our way)", like the ubiquitous "Excel as a database." Only a visionary can anticipate your needs, and Steve Jobs is gone.
2. Change for the sake of change. Compare with the crazy expensive yearly cosmetic (if not comedic) changes in auto styling.
3 (of two). Well, you know that they're greasing the skids for some secret unified watch, computer, phone, AR, OS to run the world. But can't tell you because your future is a secret that we can't share with you, and most assuredly won't ask you about.
4 (of two) The only sane future is Free and Open Source, where people outside the castle have nonzero say.