Open Access is not a business model for the publishers. They have build different ways of sucking fees out of authors when shifting to Open Access. But its FUD to claim that it's an issue with Open Access. OA is a question of licensing and copyright, nothing more. Muddling the publishers business practices with the movement to ensure free and open access to research literature is destructive and ultimately supporting the publishers, whom has been working hard for decades to dilute the concept.

I don't disagree that the ultimate goal is have open and free access is a noble goal. I just point our that what is happening in practice is that it is being taken as a new business model that pays on average more for the publishers. I'm not sure my comment implies I criticize the open access concept and I apologize if it is not clear.