Those that want the ability to charge and use their phones at the same time will eventually buy a dongle and that will have an inline DAC. There is already a couple of cables in the mix that have the DAC in line. I've been seeing them pop up on Facebook in some of the audio discussion groups, haven't been interested enough to follow.
The thing is until now I didn't have to buy a stupid add on that already duplicated the capability of what my phone does. Now I do, that's a bit of a backwards way of treating your customers. I will work it out in the end, or I'll decide not to buy another iPhone instead.
The real issue is things like that make and break customers sales. At the end of the day there is already a PR issue and a whole bunch of people who got the message Apple doesn't care any more which converts into the loss of hundreds of thousands of sales.
It probably won't affect Apple's bottom line now, but if they get too full of themselves it will affect them eventually the way it affected other once large media player market companies like Sony.
And now who honestly goes out of their way to buy a Walkman? That's the thing though Sony was the number 1 seller in this market once and if it can happen to Sony it can happen to Apple. I know Sony's high resolution Walkman is a thing but I have even less interest in it than a new iPhone.