The long wheelbase may not be a disadvantage and the frame quality is probably adequate. You’re unlikely to be jumping it off 10′ drops.
The real cost of a fatbike is in its BB, wheels and tyres. Their cost makes lycra-laddie roadies look like skinflints.
I would be quite happy to have one of those frames – the extra length might make them good for carrying plenty camping gear. Geometry can be varied by simply using a different front fork.
Personally, if I had to wait for a frame, an On-One looks much more attractive to me, and I’ll probably buy one anyway (even though I now have 2 fatbikes) because I’m sure it will be a better frame*.
* Based on the good handling I’ve had out of my other On-One frames.