In the previous episode, my web editor, Scott Murray, uncovered the fact that the Tasman's bump stops seemed engaged during heavy towing he did (2.3 tonnes, with a download of 270kg - well within the towing envelope of the vehicle).
I checked the setup in person, and the bump stops were, seemingly, engaged, and I confirmed the download by direct measurement.
So I reached out to Kia Oz, and enquired. In this video I detail their response, which seems pretty legitimate.