It might -- in this context (and always ;) ), I'd guess that experiment is the arbiter of truth. If they set up a few of them, perhaps with differing cable leng

It might -- in this context (and always ;) ), I'd guess that experiment is the arbiter of truth. If they set up a few of them, perhaps with differing cable lengths in order to vary the capacitance, the extent to which they all measured similar results would give a measure of how well the method might measure the cable ablation. There's a chance that there's a subtle systematic, but my guess is that either the method would work or the measuring device would get smoked, with not much in between.