Exactly what I was going to say. Perhaps a designer at Emagic (Apple) jumped ship to Steinberg.
Like all of their other synths - they probably hired it out. Embracer and Monologue were created by Wizoo. Even their commercial VSTi were done out-of-house - Groove Agent 1 and 2 and two of the Virtual Guitarist instruments were done by Bornemark - XPhraze was done by reFX. I'm sure these included synths were created by someone else as well. Whoever they hired probably took a look at "other" built-in synths and thought "why mess with convention"?