I am in no way affiliated with any sleeping bag company, nor am I a retailer, but I have spent well over 700 nights in a bag.
When I first skimmed the sleeping bag article, I too was surprised to not see Valendre mentioned. I agree that the bags are not particularly light, though they do have a nice 40ºF bag that seems a lightweight contender. I was surprised because the title of the article is "better bags" and while at OR I was nearly dragged into the Valendre booth by the owner and shown in great detail why these bags were "better" (construction, materials, sourcing, human resources and more). After getting into one on the show floor, I can honestly say it is THE most amazing bag that I have ever been in. The 3D cut and construction create an incredible structure to the bag that holds the lofted chambers off ones body, it feels weightless when inside.
Having checked out a number of other bags at the show, I came to realize after my time at the Valendre booth that lighter doesn't always mean better.
I still need to go back and read this article in more detail, but thought I would share these insights on other ways a bag can be "better".