... which Ford told us was because radio stations were modernizing "by offering Internet streaming through mobile apps, FM, digital and satellite radio options," ...

AM is free. FM doesn't have the range. Mobile Apps require subscription AND cell service. With 3G and 4G going away range is actually getting worse. Satellite (SiriusXM) also requires a subscription.

So what do we do? Free SiriusXM? That still requires someone to connect to a broadcasting station that sends it up to the satellite, and then the satellite broadcasts it, after which I can hear it on the radio.

AM just makes more sense.