Yes. I've seen the Lars Andersen archery video*. Everybody can stop sending me links to it now.
Speaking as a mediocre archer in my own right, and as somebody who's written three novels with a Mongol archer as a protagonist and done a fair amount of research on the subject of worldwide bow techniques...
That guy's a really good marketer.
But he's not actually doing anything we didn't already know about, he's not shooting in a manner that would be at all effective in combat or for the historically more common purpose of feeding his family, and his quiver-handling skills are worthy of the "before" segment of an infomercial.
I'd like to see him cut a sandwich with a regular knife! It might result in an explosion.
Here's the thing. He's basically misrepresenting a bunch of well-known techniques in non-Western-European archery as his own invention or "rediscovery" (bonus cultural appropriation!), and into the bargain, he's not actually putting any strength into that bow of his.
