Having just listened to Kenney Jones (Small Faces, Faces, The Who) autobiography on audiobook, the story of his contract issues with Don Arden in the 1960s sounds very similar. Robert Fripp's tales of his battles with E.G. Records and plenty of other artists, all of whom signed contracts they didn't understand early in their careers with stars in their eyes.
In other areas of employment the law protects the employee rigorously, often at the employer's expense. So, why are artistic rights not subject to some sort of protection. If Swift signed her contract in 2005 as reported then she was 16. So presumably her parents were involved in the deal, but from what I can find out are not lawyers or music industry people. Should there not be some sort of oversight when a contract involves someone young, perhaps under 21, making long term deals. Master recordings are of course for ever. I remember Swift's first album showing up on EMusic and thinking it was a perfectly good piece of modern mainstream country, not my thing, but I doubt she has missed my spending. I can sympathise with her as these recordings will now get hawked about for compilation albums and get repackaged as new product. Assuming she still holds the publishing rights (Sony/ATV from a look at one of my daughter's Taylor albums) then she will do alright, but everytime she sings one of the songs on these albums in concert she will be propping up the Scooter Braun empire, which will grate I'm sure.