Some people don't care about Apple force-retiring certain things that personally don't affect them - 3.5" floppies, etc, and trot out the tired "oh well, that's progress for you." But there's a right and wrong way to do things like this. The alternatives to the audio jack stink.
What if iOS 11 deprecated phone calls? "Phone calls are a legacy feature with too much reliance on the cell phone companies. With our new and improved FaceTime and iMessage apps, you can more quickly communicate. Yes, these apps only works with other iOS devices, why do you ask?" Would these people care then? Or if Apple suddenly did away with the hardware mute toggle, since you can do the same thing (but much less conveniently) via software?