I find the commentary interesting as no one had actually seen or driven a FuSpo, yet had a formed opinion. I've never driven a Chevy SS and would not be so quick to make statements without any first hand knowledge or documented reference points. Not to state we (collectively as a forum) don't do that as well. At least one of the members has some experience with an Edge for reference point. I am willing to bet GM follows suit with a V6 TT version to replace the V8, similar to the power plant from the ATS.
I own both a '16 Edge Sport and '17 FuSpo so can speak from a stock point of view that both vehicles feel very different even though the engine and drivetrain are the same. FuSpo is much quicker, agile, and definitely lighter. Suspensions on both are stiffer than their non-Sport counterparts (reference to the mag-ride on SS and comment about "soft" suspension). Definitely value for the money is with the blue oval badge. I've also had the Audi counterparts to both the FuSpo ('14 Audi S4) and Edge Sport ('15 Audi SQ5), each were in the $60k+ range. While the power delivery of a supercharged 3.0L more linear and fit and finish are significantly better, it is not worth the additional $20k+ per vehicle than the Fords.
As a side note, I also recently had a '17 Mustang GT rental car. While I loved the V-8 sound and power, the heavy steering, rough ride, ease of entry/exit, finding the seat belt strap and actually being able to reach it left me appreciating the FuSpo that much more. I know....apples to orange comparison...