While I agree that legacy media is very slowly killing itself, I'm very much less optimistic about it, because I don't buy into that brave new world of independent artists. The author totally ignores their dependency on the platforms they release their art on.
Those platforms more often than not demand constant care and effort in order to build and maintain an audience the artists can live off. Gone are the days where a band retreated into hiding to work on a new album while the label had their backs. If you stop feeding whatever opaque algorithm the platform runs on, you'll just slowly disappear. Worst case is that artists are forced to release nonsense because it's faster to produce.
Of course, that exact same problem always existed. But I think it's not hard to see how algorithm-driven platforms push this trend to the extreme.
And good luck appealing to Google when some bot decides to demonetize your videos.