Have you personally ever played Blockland?
It doesn't matter if he personally has or not, the point is terrain was infinite; bricks aren't.
The terrain may have been infinite, but using it's infinite properties were an eyesore.
It's looped and not a very large loop either. The quality of it was godawful. I can see every single vertex every 8 studs unless the author made it completely flat. The texture scaling was done poorly especially on intense angles.
There was only one nice thing about it. It was one object.
And last but certainly not least, anything that actually used the infiniteness of terrains wasn't even that good.
In TDMs that used it's vastness, they became boring stalemates and chases between two really far spawning points.
Anyone who worked on DRPG feels bad.
And well, nothing else really noteworthy came out of them.