All manufacturers produce edition style models and it is up to the buyer to check what is on them, they miss out items to sell them cheaper, has been going on for many years.
Glad your wife is enjoying her GLC Jim.
2017 GLC AMG43 premium plus, night pack, leather, intel lights, 360 camera, side steps. = sadly gone
Now GLE450 Premium plus, Selenite, Black/White Nappa leather, Tech plus pack, Driving assistance pack, Tow pack, Off road pack, 22 inch wheels.