Great step forward IF the Open Access fee is rationalized. Take for example, Nature Communications - which only publishes OA. The OA fee for one article is €3,850! [0]. Why should tax payers pay two times - to conduct the research, to access the research - to access the research which they fund? Specially, when most of the work is done by the researchers themselves. And before someone talks about journal costs etc. I have been a reviewer for different journals and conferences for many years now. I haven't received a single penny for peer reviews. I highly doubt hosting a PDF on a server takes € 3,850.
[0] https://www.nature.com/ncomms/about/article-processing-charg...