yeah, most projects when you spot a config file, its complexity will tend to scale with the increasing complexity of the domain you capture.

so either it's very small/mature and you don't have to worry too much, or in the active development case your config files are pretty much the instruction set of some kind of logical foggy vm... and eventually a whole environment of tools etc. will "compile down" to your config files and you get a pain knot to endlessly massage...