Radiohead had a 6-album contract with EMI, but from In Rainbows onwards Radiohead were able to call the shots a bit more, hence being able to release it with a 'pay-what-you-want' model.[1]
The article states that Radiohead's old stuff is still on Spotify, and that the albums removed were Thom Yorke's solo projects. So I imagine that EMI controls the first 6 albums, and so they are still on Spotify, while newer Radiohead content and Yorke's personal projects are more under his control.
This isn't a typical arrangement for new artists, they only got that because they were a huge superstar band already.
The article states that Radiohead's old stuff is still on Spotify, and that the albums removed were Thom Yorke's solo projects. So I imagine that EMI controls the first 6 albums, and so they are still on Spotify, while newer Radiohead content and Yorke's personal projects are more under his control.
This isn't a typical arrangement for new artists, they only got that because they were a huge superstar band already.
[1] https://en.wikipedia.org/wiki/In_Rainbows#Release