Badspot pretty much implied updates would come more often with the updater thing and then v21 as well, he said removing terrains was pretty much better for the game because it would allow things to get done faster, and terrains sucked apparently.
Well seeing as how things aren't even being updated anymore I feel like those updates were a failure. Most of the updates upcoming, he still could have done easily, even with terrains still being here. Even without the updater, probably.