The Ultimate Magic spell shadow step seems to be a watered-down version of the classic dimension door. This seems not only redundant, but odd, as shadow step seems weaker and more restricted than dimension door in every way - shorter range, self only, somatic component, only along a path of shadows... Yet they're of the same spell level.
Is this meant as some kind of "poor man's dimension door" for spellcasters barred from conjuration/teleportation? Is it intended primarily for the new Witch class? Or am I missing some advantage that shadow step has over dimension door?