I don't know enough about Expo2020 to agree or disagree, but I assumed the author's assessment above was in reference to the series of which the Dubai exhibition is a part.
It's basically the equivalent of the Olympics of the business and science world; of you are granted the honour of hosting, you go out of your way to extend an olive branch.
I mean, they're pretty great overall but all the problems you think the USA has, they have in spades. And while they are great they aren't solely because of ideals as much as luck of their conditions forging a good culture and climate for success.
I'm heading out there next month and will hopefully find something inspiring to help shape our efforts.
In other words, the clearest route to getting people excited about a World Fair involves sacrificing the reason you'd want people excited about a World Fair.
The organizers put the USSR and Nazi Germany directly across from each other... talk about "unifying vision" ...
https://www.messynessychic.com/2016/09/21/when-paris-invited...