The batteries are going to be a consumable if users continue to demand a wireless experience, which most of them seem to prefer, regardless of whether that’s delivered as a dongle or integrated into the headset. It would be nice if we didn’t demand so many things with batteries in them, but that isn’t IMO an Apple problem, that’s a demand pattern. Encasing them in the product might even keep batteries out of landfill. An old AA or laptop battery is easy to pitch, a $550 headset is much more likely to be repaired by someone in a position to recycle the battery.

Bluetooth and the integrated form factor is a risk, but I think that’s not a ten year concern. It would be nice if they had a physical port for the eventuality though.