Plan S could have been written by the big commercial publishers, except for one key provision: It seeks to regulate APCs – ArcheoThoughts

"Plan S is not radical...

Plan S even advocates that the APCs be paid by funding agencies and governments, maintaining the massive transfer of public money to publishers for our privilege to publish and read publicly  funded research. It creates a system in which we continue to pay to have research done and to have it published.

By specifying that green OA only plays an archival role rather than a publishing role, it keeps commercial publishers firmly in control of the landscape. That is far from radical, and is exactly in line with the wishes of the commercial publishers. So what are they reacting to?..."