People want thinner. People want more features. Space is at a premium. Result: lose the headphone jack.
No, Apple wants to lock users into their lightning connection and the only way they could do this was to ween them off of the 3.5mm by offering a lame dongle as a stepping stone into lightning headphones or their lame wireless ones. This much should be obvious even to a blind person.
[doublepost=1473711734][/doublepost]
QFT. Let's see if you've held true to that position in two years.
Why wouldn't I? I have no unstoppable need to buy Apple products. While I love my 2009, 2012 Mac mini's, iPad Mini 4, iPhone SE that will be the end of it if there is no more 3.5mm. I can find alternatives if I need to.