If you can cite some of these authoritative and reliable sources of this wondrous new scholarship so I may update my antediluvian musical education, I will read them with great interest.

There are plenty of references in the Wikipedia piece. That's what Wikipedia is for.

I was familiar with these arguments before Wikipedia existed, though. And the more I hear it the less like Bach it sounds to me. (I kinda fancy having a go at the solo alto recorder arrangement by Aldo Bova - https://www.youtube.com/watch?v=odko2FccBo0 - in many ways it's an improvement on the organ version because it leaves unnecessary notes out, the harmony is just as clear when left implicit).