I don't know if I agree.

People who moved to bluetooth got arguably worse sound quality.

For wired headphones, there were very few lightning headphones and they mostly sucked.

Now with usb-c you can get a broader range of headphones (because other phones have gone with usb-c).

either kind needs a dac inside the dongle, or the shell of the headphone, or have a bulky external dac.

3.5mm is still king for decent wired headphones/earbuds.

Most people don't like wire and don't care about genuinely good sound through wire vs. artificially sweetened (DSP-ed) sound through Bluetooth. That's what Apple is targeting at, the mass consumer.