If you're going to go full waterproof & full wireless for audio...why not go fully enclosed? Remove the Lightning port. Wireless charging only.
Because that would make too much sense. Waterproof phones have been made with 3.5mm jack for quite a while. So using that as an excuse is pretty silly.
If they are using that excuse then you're right, why not seal the whole thing off.
Once these companies get popular enough they tell us stories as if we are imbeciles.
Also instead of just supporting apt X they went and did this. Apt X has a range of existing products you can buy today. Instead they kept us on older crappy wireless audio standards until they created this.
This is getting to be as bad as Sony was at its peak. See where they are now. I sense a similar trajectory. If before a few decisions were money grabs now every last decision is a money grab to the core.
I really wish Windows Phone were a contender. I'm getting an android to test the waters. That's how I got hooked on iOS - with a refurb to test the waters.