You're right...I feel like you and I might have touched on it briefly at lunch, the dynamic concept thingy, but my memory is so shit. Perhaps we could get into it more in the OCD post (OCD is dynamic but too weird for people to write except for laughs), or here, or at your post when you write it up, or something.

As regards your writing, I think you should just carry on and write it, then go back over it after and determine whether it needs a rewrite. From what you're saying, it doesn't sound so much like the trope as a fairly good analytical piece.