The convention focuses on the entire Walt Disney Company, not just the Parks and Resorts. It receives significant international media attention (at least the first one did). The vast majority of the convention focuses on areas of the company that have nothing to do with the parks.
The Parks and Resorts division, just like the Company itself, is a worldwide company, and should (and will) be showcasing all of its projects worldwide. In addition to Shanghai and Hong Kong, expect a great of stuff showcasing Aulani.
To suggest that the Parks and Resorts presentation should only focus on the two stateside resorts is at best foolish, and at worse incredibly xenophobic.
First, props for using the big three dollar words like "xenophobic".
Second...a
tad overly dramatic, don't you think?
Look, the vast majority of people who go to these are from the US. The vast majority of them will never step foot out of the US, much less go to a specific location of a Disney park not on US soil. Will some? Sure. Will you find more than the average public interested in overseas parks because it's a Disney fan convention? Sure. But for the most part...not really.
So yeah, these people that pony up all this money for a D23 subscription, and then money to go to a convention, yeah, they wanna hear about stuff they'll actually see and do. Not saying they should totally exclude the other parks, but just looking at economics and your audience, they don't wanna hear nearly as much about what you are gonna do for "them" (people who have parks across the other side of the world) but for "us" (the parks that Americans go to most often).
Nothing xenophobic about anything, LOL, or even foolish.
Just more like, "I want to hear about what you are making for dinner, Mom, not what the next door neighbors are having."
That said, the media doesn't care about D23. The first one got some press as you said, but it's just not on the radar of the world anymore once everyone figured out that it really was just a Star Trek convention in disguise. Nothing wrong with that (and I've been to a few Trek conventions so I speak with knowledge on the topic), but just that it's largely a social event and about buying crap, more than any "newsmaking" anything.
They tried to peddle D23 as an "insiders!" place, specifically to combat the popularity of sites like this one in particular. They tried to capitalize on the want for insider knowledge by charging a membership fee, which is the only thing that qualifies one for this "exclusive" club. Thing is, since any old person can enter, even if something DID get released exclusively, we'd have it posted on here thirty seconds after it was released (and probably already know more about it than any info to come out of D23 would have given, thanks to the few real "insiders" we already have on retainer here).
D23 must be popular enough for them to have kept it going this long, but to be honest I don't think anyone will remember it in ten years. It's just too thin a concept, and any real "WOW" is few and far between. It's like the Backlot tour, circa 1994 where it's already past it's prime and not really what it was sold as to begin with, but the cracks are finally showing through to the more average guest, or in this case, member.