Witness had memory of it and it would've been sick to see it manifested as a zone in the Pale Heart. Massive missed opportunity. Even just a flashback vision upon touching a Dissenter Statue would've sufficed.
I wanted to see the Pyramids arrive and the bleakness and despair Humanity felt as darkness beasts under Nezarecs control ran wild across the Earth's surface as Witness gave some sort of salvation has arrived speech.