Please view the tape again, or track down some Bruce Sterling rants – I think you missed a central point.
In all my Architecture lectures, I’ve never once heard about the Adz or the three crop rotation system. Yet change either one of those, and gothic cathedrals would look – and function – differently. They wouldn’t even be Gothic.
Infrastructure Design Fiction certainly should have a constructive dialogue with architecture, and much architectural theory might be usefully be interpreted as "proto-design fiction. " But Design Fiction is no more Architectural Theory than LARPs are Political Theory.