The streaming function of music is relatively new and of course there is a problem for artists to get paid for that music. It was more easy in the time of physical records… As a listener you pay for high quality musik via premium accounts at Tidal, Qobuz and so on. These accounts make it possible to do the listening in Roon and LightningDS also.
To be a meaningful streaming hardware unit I think you have to be able to use the unit for all possible kind of streaming. If the radiostations start to demand fee for musik, I’m prepared to pay a reasonable amount to be able to listen to high quality musik. But the hardware also have to see to that this is possible. Maybe sometime that is a cost for the hardware company - so may be.
If LightningDS can stream from Tidal and Qobuz for example, when the listener have premium accounts (and pay for it), I wonder what the difference is to RadioParadise. It ought to be possible to make an agreement with RadioParadise that listener with RP-account (login) could listen (FLAC) also via LightningDS and the technical problem ought to be possible to solve for Auralic developer (as for JRiver, Squeezebox…).