I never liked terrain anyway.
The way I see it, Blockland is an abstract game. In an abstract sandbox game the "goal" is to create realistic constructs. Why realistic? Well, it's because it's an abstract game therefore it'll be an acomplishment if you make an abstract game highly detailed and realistic. I sometimes browse the Gallery and look at amazing builds, and I say, "Holy stuff, this is beautiful." Then I realize, "holy stuff, this is a game of LEGO." It just makes me appreciate how much wonder there is in this game.
I also wonder how the hell nobody on the opposition of v21 can wrap the simple fact around their heads that we're not sacrificing terrain and interiors JUST for shadows and shaders. It's for an engine improvement. I'm not sure about its full extent as I am not a Torque techhead but judging by the fact that Badspot and Kompressor ditched a (supposidly) large part of the game it appears we're only seeing the surface of the iceberg.
And if you're complaining that there is going to be too much lag/brickcount hogging from brick built terrain, one of the possibilities from this update is higher performance, which means a higher brickcount limit.