I personally agree with Tony,
removing the interiors will remove the cosy-feel that Blockland always had. It is not the same to build on a flat, open and never-ending plane than to build inside a warm-looking bedroom. It is what gives Blockland the true feel of playing with "Lego".
I am not against the fact that removing interiors and terrain will allow for faster development, I completely understand this and would trade interiors and terrain for it. However, what gets me annoyed is that the game developers are removing interiors and terrain as if they don't play an important role to the game - they do, they play a huge role in the fantastic gameplay of Blockland, which is to be able to pick a desired location to build on.
I am almost certain that there is a way, not to keep the current system for interiors and terrain because from what I hear their code is messy and works horribly, but to create a new, custom and easy system to allow users to create interiors for Blockland. I hardly know anything about game development and coding, but I am sure that with a little work this can be implemented.
This is not a request OR a complaint, just my personal views on the subject.