"We do NOT host any of the streams or videos available on our playlists or podcasts. All copyright violation issues should be redirected to the companies hosting these files."

 So Id say its a case if "Dont shoot us, We're just the messenger."

So no, not legal.

Fluxus is just a compiled m3u playlist of streams from various sources.

Many of their streams are not from "legit" sources, a big list, however thousands of them are dead links. Its not well maintained