I just skimmed, lightly, the article, if that matters.
Protestants and Catholics do share a source material and some history (though any bit of it could be disputed by any given person). I think that's a bit different than whatever mumbo jumbo is being peddled here.
This new thought seems to be nothing other than a worship of progress and a conceit that whatever is novel is authentic or worthwhile. A conservative should abhor such a thing.
SD