I think it's that and was also especially born out of the idea of mass appeal (i.e. not all people like all color but most people are at worst ambivalent on plain white walls and minimalist styles). I would hope any eco future would likely see an integration of diverse plant life into specific zones paired with vertical living spaces and thoroughfares. There's a lot of interesting permaculture research now and it's nice to see attempts at replicating that in a larger scale in the future.