Thankfully my Cardo headset supports FM radio because my Fairphone doesn't and I like to have radio when I'm on a ride.

low end MediaTek ones often do

It'd be better if it had fm transmiter, so you van turn car radio or normal old radio into a useful wireless speaker

Exactly. Have that as an emergency option or a free substitute to streaming music and news. The more options there are, the better. Surely, this is not relevant for the US, where radio kinda sucks nowadays, and Billboard Top 100 are put on repeat, but in European countries, Middle East, Asia etc. this kind of thing is invaluable.

They'll never include it as it needs the headphone jack. Unless they expect a huge market for radio, that is big enough for them to offer a mea culpa and give back head phone jacks, it's never going to happen.

Would people love to get headphone jacks back? I'm sure. But I don't see the market being there to get companies to give in on that.