The problem with this whole discussion is the implicit assumption that the only thing you plug headphones into is a phone. Personally, I have a bunch of audio gear that I use with headphones, none of which is going to be moving to any new connection any time soon. Furthermore, there's a vast difference between performance headphones that you use in your home and portable headphones that you take with you everywhere. It makes sense to me to make headphones for mobile devices that have the best interconnect possible, and the 3.5mm jack is not that interface.
I can't tell you how many times my cables have been caught on handlebars, mirrors, brake handles, baby carriages, pocketbooks you name it. Even when I thread the cable through my shirt for cycling there have been occasional entanglements. But here's the thing ... I ain't hardly dealing with the airpods running out of juice before the phone when I'm on a 6-hour journey... and charging another device is beginning to overwhelm my patience.
Maybe in 3 years the tech will match my needs.