I kept trying to think of meaningful usage of this many layers of abstraction, and I can't find a use in my head where the three-deep decomposition adds value.

I kept trying to think of meaningful usage of this many layers of abstraction, and I can't find a use in my head where the three-deep decomposition adds value. Knowing that the stuff you measure is often not the actual stuff you care about is an advanced bit of cognitive development, but does this level of formalism really help?