Sorry, it is not semantics - he listed the correct stations in the superstation package. WGN is not part of it, and you will not receive WGN if you subscribe to the Superstation package. Also WSBK is at 8775 as it shows, though it is at 236 as you say also. My quote was copied directly from the Dish site.
As Dishrich points out, WGN is now a cable station, not considered a superstation anymore.(Meaning it is available on most if not all cable carriers now, while those superstations are usually only carried locally, except for Dish carrying them in the superstation package) Our cable company actually dropped WSBK when it was designated a superstation years ago while they continue to carry two other Boston stations even though they are out of market. (They are SV) They also dropped WWOR around the same time.