That's not how things work.
Scott Brochetta from Big Machine explains it quite well:
"There's not any artist that can go and pull them themselves" [because they don't own the rights]
"I went to her and said I want to pull the whole thing" [not her idea to pull 1989 from Spotify]
"
Would I have [still]
done it if she didn't want to?" [because she doesn't have a choice]
When asked why he chose to use Taylor Swift as a mouthpiece:
"she was the loudest megaphone" [A megaphone can't speak on its own. Taylor Swift publicly broadcasts the message from Scott]
Scott Brochetta from Big Machine talked of planning a showdown with Spotify in 2013, a year earlier.
Artists like Swift get paid large sums in advance - in return for contracting to make a number of records that the label will then own. Big Machine paid Swift big dollars for this. Her father only has a 3% share in Big Machine. Scott Brochetta says Big Machine has less than 51% share in rights with some other bands, and that is not enough to for him and an agreeing artist to pull from Spotify:
"[Big Machine]
don't have control over [bands that Big Machine is in joint venture with Republic Records, a division of Universal]".
"So I can't do anything right now about Florida Georgia Line or The Band Perry.
"
Read more for some background, and the above interviews:
http://www.billboard.com/biz/articl...ott-borchetta-on-spotify-beats-music-entering
http://www.hollywoodreporter.com/news/taylor-swifts-label-boss-her-769072