Why are people so desperate to defend this clearly user hostile move? A dongle is a poor user experience and continues to degrade user experience over time. The fact that there was a market demand for a "cool" keychain shows how unnecessary the removal of the jack was. Believe it or not, people enjoy using things without unnecessary accessories that you have to keep track of and swap around
I think the best use case for a dongle would be the first MacBook Pro I bought. They had phased out the VGA port for a DVI port, but included a DVI to VGA adapter in the box. The great thing about that is it simple a physical wiring adapter with no other logic inside. It worked well and no one complained since carrying the adapter in the bag with the laptop is not a big deal.
In the case of the iPhone 7 the laptop bag is my pocket which has much more limited space and a hard connector getting situated in the wrong spot could end up being uncomfortable until readjusted. Additionally it is not just a wiring adapter. The Lighting to 3.5mm adapter actually contains a DAC and ADC inside of it which unfortunately causes the audio quality to suffer slightly compared to a higher quality dedicated DAC/ADC solution inside the phone.
The conclusion on sound quality at the bottom of your link:
"when playing an uncompressed 16-bit audio file on the iPhone 6s, the dynamic range dropped from 99.1 dB at the headphone jack to 97.3 dB at the adapter. Though keep in mind, this slightly lower measurement is still higher than the theoretical maximum you get from a compact disc (which is 96 dB). So, is it a difference you are likely to notice? If you sit in a quiet room with a really, really good pair of headphones … and you’re a canine, the answer is: maybe."
I will not upgrade to a phone that does not have a 3.5mm jack.
But arguing this is a poor user experience is probably wrong for most people. Apple is correct in that this is the way things are going. I bet all the Flagship Android phones will be jackless too soon.
Believe or not only few care about that lousy jack. Most will use earbuds that come with the phone, others will permanently have dongle attached to their headphones.
And those who go AirPods way will forget jack ever existed.
> those who go AirPods way will forget jack ever existed
I'm pretty sure that this market segment, while surely it exists, will never overlap with those who care about good sound quality and a good music listening experience.
In other words: they're leaving significant market segments behind.