Listening to Radio in FM uses passive reception and dedicated chip, and thus has probably much lower power consumption.
Not having WIFI or 4G available is also a good reason.
Not having WIFI or 4G available is also a good reason.
Because WIFI and 4G being down at the same time is a thing that happens ?
There actually was a bit of outrage over that last 0.5% a while back due to emergency services not being reachable in those areas and the mobile operators had to make promises to cover those areas as well. So yeah, coverage is pretty much total.
Also, big difference between emergency service and 3/4G suitable for audio streaming.