Your argument here is full of assumptions and incorrect deduction.
I fail to see how, if the current was measured wrong, then any calculations using that wrong "data" can be right. Especially resistance, since we have no voltage data, except for the mains. Using only some Joule heating figures (calculated by the report authors) and one current measurement (possibly in a different electrical configuration), a somewhat wobbly construction of electrical values for various things have been obtained. Cut the legs off by invalidating current (especially when it is derived by de-construction of other data, not actually reported as measurements for the active run) and the entire construction collapses. Then discussion of resistance is futile.