>>One way to side-line Piazzi Smyth's Pyramid Inch would be to discover a better theory. No doubt such a theory would be seen by some as an invention, and by others as a miraculous sign.

I think I have a better theory, and so does Don Barone, so there are no shortage of candidates. Meanwhile OCT still holds pride of place as a modern alternative theory, and it may turn out to be as long lasting as Piazzi Smyth's theory.<<
Piazzi Smyth's Pyramid Inch theory is not antagonistic of OCT or other similar theories since one tries to explain how the cubit was created and the other the pyramid layout etc, two different things.

My theory works better because it can explain the different cubit lengths based on planet radius and flattening - radius divergence. Nothing needs to be done the solution exists.