Not because of this in particular. Demographics are, right now, not in Worldcon’s favor: its fandom is aging, as groups tend to do. It’s not completely stagnant, new folks do come in, but the median age slides up. There are folks within it who are actively hostile to younger sf fans with their tiktoks and hula hoops and ebooks and all, just as there are younger sf fans who are actively hostile to groups of old people far too comfortable with white patriarchal hetero norms and visions of futures whose sell-by date passed before a lot of the younger folks were born.
This has been a concern for decades. Heck, it was a topic of occasional discussion when I wandered into LA fandom in late 1970s. There doesn’t seem to me to be any very good solution to the whole spread of contributing issues, but I like being pleasantly surprised. The Chengdu mess could even up being part of the solution, if it gives weight to reform efforts that need help.
I've gone from being scared to being amused by this. Scared because Worldcons literally saved my life - an abusive marriage and there was only a tiny core of the left. Finally my brother said, "You liked conventions and there's this huge one in Chicago. I've paid for everything and you're going." I wrote that experience up for Glyer, back when File 770 as an actual publication so I won't bother now, (I think it started along the lines of "The Worldcon was like swirling kalidascope full of multicolored stars.") But one of the results was going to SMOFcon, the conrunners convention. I soon heard that what saved my life would be dead in ten years.
That was in 2000. You first heard it in the 70's. The Worldcon has never even noticed.
There was a huge divide, an age gap, between the older crowd of conrunners, extremely starchy, and the younger, excited to play with this. Being in-between I kept telling the older crowd to get over it already. Then someone who'd been working on cons for something like 40 years, "paying it forward", abruptly got the concept of the younger crowd at a SMOFcon. And spent the weekend surrounded by them, passing along what he knew and his email address. By now SMOFcons have more of that crowd than the previous one. I keep telling people here that people learn Worldcons by working on them. and moving up in the ranks: it's happening.
There was a time when fandom was aging, snooty, even that if you hadn't read the cannon (SP?) you weren't a fan. But novelists keep writing anyway and the snooty aren't anymore. It took a while before graphic novels made an impression, now there's a proven Hugo for them, and for best Fancast. The demographics have swung drastically to the opposite of too old, white, hetro patriarchal to fans aggressively making up for it. Programing isn't geared towards younger people, younger people are doing programming. Mainly Worldcons are the same as when SF fans were the weirdos, a place where people aren't particularly weird. I did once run into someone who's interjections, fiercly holding the male heierarchy responsible for everything, got me on the edge of blowing up, held back by it would be a useless shouting match. Gradually calmed down enough to logicaly point out something she'd understand: the code of conduct meant everyone, including her. Which stumped her.
I still smoke so I'm outside and wind up talking with people about all sorts of things, some of us get to be friends because we keep running into each other. There's my bookselling/dealers room crowd. There the people I recognize, even if all I remember is I liked being around them, maybe after a panel? There are excited conversations after a panel. Thing there are more clumps of younger people who do the same thing.
And that's a way Worldcons haven't changed in the least, just hanging out together. I'm terrible with ages and sometimes find out I'm talking with someone in their 70's, sometimes in their 20's.
(Dave Kyle welcomed me to my first Worldcon, I was with him at what turned out to be his last, keeping him company at the post-Hugo party. After regular "Dad, it's time to get to bed" his children gave up for a couple of hours. Somehow he hadn't been to a party in a while, the just hanging out together. At one point I noticed the people he was hanging out with were in their 20's, a quarter of his age, all in deep in conversation.)