Some do. I even have an absolutely amazing radio station app that I don't want to ever change so I don't and won't tell anyone for fear it will get ruined.
But Internet radio isn't FM radio. Killing the headphone jack killed having a device that should play music without needing to pay for anything other than the device.
Losing FM radio helps then track you and spy on you, even if it's redundant for many of you, it doesn't change that they took that functionality away so you had to pay dollars for access.
Until access to free universal wireless data is the same as access to FM radio then they continue to take music away from us
Its just an observation, you might even consider it a worthless distinction, I'm simple sharing a truth that I wouldn't have realized had I not been using this old phone that still had that functionality.
And I'm old enough that I used to have a "walkman" so it's perhaps something that you may not care in the slightest about
I may not understand what point you are trying to make and if so my apologies