Thanks for finding that note about AC Elite members.

I don't see anything there to clarify for non-AC *G though. They do say this rather vague thing: "The upcoming changes to Economy Basic fares will not apply to Star Alliance Gold Members. All Star Alliance Gold benefits will continue to apply."

Note that Carry-On is not a stated benefit of *G status. And right up top the wording does note that carry-on restrictions don't apply to "International" flights (excluding Sun destinations).