Not so much lied to, as misinformed by a dealer who wouldn't know 154CM if it bit him in the yarbles.
The company is called "Santa Fe
Stoneworks", not "Santa Fe
Knifeworks". They do the embellishment, nothing more.
Heck, if you were Kershaw, would you want an aftermarket outfit replacing blades on your knives? That goes way beyond cosmetic embellishment, and could affect the basic functionality of the knife, which is what Kershaw's reputation rides on.
I have a few of those SFSW knives, and they
are pretty sweet. My favorite is a Delica SS with red coral spiderwebs in a jet scale, and a silver Spyder inset. Keep in mind, though, the combination of steel scales plus stone is DAMN heavy!