and, as the articles points out, it is literally out of copyright.

For profit journals need to die.

You know what is even worse? A lot of what is paid come from public grants and not-for-profit grants. Reviewers are not paid. Editors are mostly other researchers. Authors are required to put the paper in ready-to-process.format. Thus public money funelled into journal pockets.

There is almost zero reasons why the governments or NIH-like institutions don't have their paper repository.