I'm inclined to give some slack in this update. Considering what can be seen is clearly custom and not simply stock assets and animations, plus all the placeholders clearly setting up for the future, there was clearly a lot of background work put into making the building.
Setup takes a lot of time. Not just images, but code wrapping all the locations, variables, and triggers together.
Also a lot of the stuff worked on in this time gap isn't currently implemented according to the dev logs on their patreon. Give it time.