When I say credit, I mean to imply these changes came about because of (or in some portion because of) their refusal of blood. I mean it in the sense that they are given credit for initiating an inquiry for change.
This article I present here, which evidently had appeared elsewhere before now, makes this very argument. In reading your response it appeared to me that you agreed they deserve credit for making the developments necessary - perhaps I misread, but if not I disagree for the reasons I outlined in the closing comments of my previous post. Those being, in summary, that they deserve no credit for something they had no intention or concern or even the slightest inkling to bring about what-so-ever.