Maybe it is just me, but I went to an official lyric service, a service that pays copyright royalties to the writer of lyrics in songs, which seems to indicate for this song that Pattie Smith wrote the lyrics to this song originally.
If you have a more official correct lyrical content for this song, you might consider submitting the lyrics source for this song so it can be updated at the Genius service?
As that aside, as has been posted in this thread originally, content is provided as is to the Spotify service by the content providers. Labels will make the effort to provide censored and explicit album releases to the service where available. Sometimes this happens correctly sometimes it does not, and even results in explicit songs not being tagged correctly, which well needs to be corrected anyway for the Spotify users who wish to avoid the explicit songs in environments a song like that might not be appreciated i.e. school, work, playing music around children when one wishes to avoid something kind of nasty in a song around them with.
It is just common decency, having explicit music tagged properly is necessary for those in an environment, when playing rude and offensive music might cause public problems for them.