> probably a hell of a lot easier to maintain and manage than splitting the logic up among tens or hundreds of files
I'm only halfway through John Ousterhout's book Philosophy of Software Design but I think it agrees with you on this -- that smallness-of-file or smallness-of-function is not a target to shoot for because it prevents the things you build from being deep. That you should strive to build modules which have deep functionality and small interfaces and should contain their complexity within them so the users don't have to know that complexity.
I'm only halfway through John Ousterhout's book Philosophy of Software Design but I think it agrees with you on this -- that smallness-of-file or smallness-of-function is not a target to shoot for because it prevents the things you build from being deep. That you should strive to build modules which have deep functionality and small interfaces and should contain their complexity within them so the users don't have to know that complexity.