[MoreQARespect]

>Which to me was kind of the whole point of TDD in the first place; to let the ease and/or difficulty of testing become feedback that informs the design overall

Yes and that is precisely what I was arguing against throughout this thread.

For me, (integration) test driven development development is about creating:

* A signal to let me know if my feature is working and easy access to debugging information if it is not.

* A body of high quality tests.

It is 0% about design, except insofar as the tests give me a safety harness for refactoring or experimenting with design changes.