I've only ever had a large Sebenza. But I do have a high-quality chinese knock-off of the small, which I assume to be pretty much an exact copy, and it is a small knife.
It also strikes me as a scaled down version of a larger knife, rather than something that was designed as a small knife. The usable grip area is only about 3.25" long, which is small for me, even though I don't have big hands. I wouldn't pay the price of a real small Sebenza.