Anyone else has noticed this? Also singles such as Lyla, Importance of being Idle, Go let it out are greyed out too. :(
Where are you located?
The album is not available in these countries:
The availability of music on Spotify is up to the artists and their music label.
If the music is unavailable, the artist or their music label has likely decided to not make it available in Spotify.
Sometimes the music is only available in certain countries, while access is blocked to others.
Sometimes the album or song will be unavailable temporary, and come back again later. Hopefully it will come back later.
Contacting the artist is a good way to let them know you miss their music in Spotify.
More info here.