Some of the Native style bows were shorter, I think as people become interested in Native style bows,,,, they make shorter bows to see how they shoot,, not recommending any style bow,, this guy was a chief,, he probably does not feel he is holding half a bow,, or that his draw is short,, just a different perspective,, just depends on what kind of bow you want,,
as suggested,, a longer stave might be better to start with,, but a nice shooting bow can be made from a 49 inch stave,,