Continuing with the jet engine analogy, having a battery also offers tangible benefits like being able to have ANC and automatic device switching that aren't offered on wired units. Even switching my AirPods between Mac/Windows/Raspberry Pi is one or two clicks.
I think we simply put more value in different aspects of listening to audio on earbuds. I agree with most of your points for cans while working at the desk and editing media, but when I'm out and about I value the freedom of not being tethered and ANC a lot more over the drawbacks.
Newer TWS has also been making progress in addressing a lot of issues of older BT headphones. For example, the latency of older BT headphones got significantly better with W1 and now with H2 it's
very close to being indistinguishable from wired sound. Audio quality is also improving with aptX and the like, although I don't know how much improvement we can hear anyways given the small driver sizes on ear buds.