The Little Hero is sized to fit people who are too big for the Sidekick or too small for the Hero. Little Hero specs from the JK site: length 7'1'', width 24'', height: 14'', weight: 34 lbs.
For some reason they did not post the volume, but the ideal weight range for the boat is 90 to 150 lbs. Sidekick volume= 50 gal., Hero= 75 gal., so the Little Hero should be somewhere in the 60's based on how the rest of the hull scaled.
You may be referring to the Sidekick when you say "60 suggested boater weight." At any rate, the Little Hero will perform as a playful river running creek boat type of thing. It's not a contradiction in terms.
The links below will take you to two movies that prove my point.
I've been paddling the Hero series since they came out, and they fit the bill any time I don't want to paddle my playboat. From Big water, to creeks, to day trips, to overnighters I have been impressed with how these little boats handle. I really like having the ability to surf and play while still feeling 'taken care of'. On the North Fork Payette, for instance, there is a ton of catch on the fly play that people in creeky designs have to pass by because their boats are not very controlable in a surf. With the flat hull and carving edge, the Hero shreds up these features, but it still has the volume to handle the big pushy water that the NF is famous for.