"But it is considered a quilt. They have it compared to traditional sleeping bags. Great quality ,but not a sleeping bag."
Actually, they compared it to both sleeping bags and quilts (enLIGHTened equipment, ZPacks and Nunatak, as well as JRB, were also in the mix). And while the Katabatic was 'editor's choice,' they also chose a Feathered Friends bag as a top pick, and a Sierra Designs bag as best bang for the buck.
I don't think they were biased, they simply had an opinion on what they liked best after trying them all out.