Have you really been reading the thread?
My recollection is that it's pretty clear in that thread that DW is a rare but possible consequence of having a solid front axle along with "loosey-goosey" suspension components, mainly the trackbar.
So it's rare, but possible, in any solid front axle vehicle. The only "factory remedy" possible I'm aware of would be going to an independent front suspension rather than a solid front axle, which (absent using a very expensive IFS set up) would very much compromise the offroad abilities of the Wrangler. So that's a non-starter.
With all that in mind--no, there is no factory remedy and there won't be unless Jeep substantially redesigns the wrangler as less of an "offroad" vehicle. Yes, it's possible on all wranglers that came before and is possible on all solid front axle vehicles. Yes, it's possible on your wife's jeep, though it's very, very rare. Keep your suspension components properly torqued, and you should almost certainly never encounter it.
