This notion gradually descended my team into hell back when I was on a project using Spring.NET, which actually does have a Turing-complete config DSL. But that wasn't the main problem, the main problem was how much configuration was needed to do absolutely anything. Mountains of it.

Create a component, then tell the framework how to instantiate it, then tell the framework to instantiate one and give it a name, then pass that name into anything that needs one.... blech.