I've just finished reading the magazine this weekend.
Bushcraft has always been part of scouting, just under different names (backwoods cooking, pioneering, celestial navigation etc). Now that Bear Grylls is Chief Scout those skills seem to be grouped under a single banner of bushcraft, but they've always been there.
Plus bushcraft is pretty mainstream anyway - everyone knows Bear Grylls and Ray Mears, and travel supplements are full of reviews of bushcraft campsites as an alternative to "glamping".