The main problem with architecture metaphors for software is that software people think buildings and other construction projects are far, far, far more static

The main problem with architecture metaphors for software is that software people think buildings and other construction projects are far, far, far more static than they actually are, so software people think they have a unique problem. As an example, someone saying "but you don't change buildings|bridges|towers|dams|... once they're built" is almost inevitable when you start comparing the discipline of architecture and infrastructure to software.