A piece of marketing that looks good but does basically nothing
Really, it's 98% fluff/marketing and probably means they started putting rubber gaskets around the pipe penetrations in the walls.... or something minimal like that.
RV manufacturers are masters of making virtually insignificant things sound like major advancements in the technology.
I own a 2016 Hideout and can promise you it's no energy efficiency marvel. To be fair, no RV is really great from a heat loss/entry standpoint. There just isn't enough room for much insulation.