Why does the app prompt to turn off radios or turn on airplane mode?

I want to use a Spotify playlist for alarm but if I turn on airplane mode then it plays default alarm because no network so I don’t want to turn airplane mode. So, is there any reason why it prompts for this?

It’s probably there since airplane mode typically turns off all your radio functions which in return will prevent you from getting any notifications.

No notifications = Better sleep

I think this should change to allow DND instead now.