Why wasn't there WSG?

We are all the perfect level for it.
It would have been an insane amount of fun.
The terrain/textures of WSG haven't really changed much since 2008.

Why wasn't WSG in the demo? It would have been amazing!
I realize it's been nearly two decades since we've had a real demo in the gaming world, but typically demo's aren't very long,typically they are the intro level to most games, 15-20 minutes of gameplay max and they don't usually have everything in them either.

Demo-
Early access
Alpha
Beta
Gama
Delta
All different words and many indy companies on steam have used that second one as a <expletive> perpetual open beta.