Nobody
wants it, but they have no reasonable alternative to it. There are so many disparate factors that differentiate an iPhone from its competitors that the lack of a TRRS-barrel headphone jack is likely insufficient to change the whole-product buying decision.
You just have to pay for the headphone dongle replacements for as long as you own the phone, or the licensing fees and brand-based price differentials for every pair of headphones you buy--the "Apple tax" in action.
As long as someone gets more than $3/month in personal benefit from owning an iPhone instead of the next-best alternative, they will suck it up and buy the $9 audio dongle every 3 months. If they didn't realize that much benefit, they wouldn't have bought the iPhone in the first place.
Anecdote time. I told my family long ago that if they bought Apple products, I would not support those products in any way. If there is ever a problem, take it to the Apple store instead of telling me about it. Two of them chose iPhone anyway--one within the last year. And lo, surprising no-one, or at least not me, those earbuds with the lightning connector broke after ( N < 12 ) months. A conductor is loose between lightning connector and left earbud, the break occurring near the lightning connector. Because that part of the cable has zero strain relief. A flexible cable coming off of a rigid bit of plastic--of course it's going to break there. It's either that, or wearing out the insulation on the cable within 15cm of the connector.
So, this happens: "Hey, logfromblammo, please come with me to the Apple store and hold my hand while I try to get a warranty replacement for these headphones that are otherwise $29 to replace?" "No. I told you 'no' years ago, and I have not changed my mind since; if the problem has an Apple logo on it, it is entirely your problem." And this somehow makes me a jerk. I knew this would happen--I tried to stop it by telling people "don't buy anything with an Apple connector (except MagSafe)". This is why, when Apple first made the announcement that they were removing the TRRS barrel jack from their phones, I raged for days, despite not owning an iPhone, because people around me own iPhones, and knew I would have to hear their pleas and complaints. It has happened over and over and over again. Apple makes a shit sandwich, puts it in a white box with a silver logo on it, and people just... eat it? Why do they eat the sandwich? That guy just got seconds! It even says "poop sandwich" on the box! Why are they doing this?!
The engineering solution may be technically elegant, but it is an answer to a problem that Apple created for itself--a problem that never needed to exist.