By doing this, you supported the bands you liked, and supported experimentation by accidentally subsidizing a lot of bands which didn't turn out so great (at the very least, experimentation in cool album covers...)
But you don't actually do that on Spotify. As the article correctly points out, your subscription fee doesn't go to the artists you listen to, it goes to the artists played on Spotify as a whole - that kid playing some pop song on repeat 24/7, that restaurant playing Bangla music in the background whenever it's open, or the spammer uploading 10000 machine-generated tracks and setting an army of bots with stolen credentials to listen to them on random shuffle - they all direct Spotify's artist pool money much, much better than you.