It's not strange. Twitter is a U.S. company, of course it takes a deeper interest in matters of U.S. politics than it does about every other country on the planet.
They said nothing about Twitter's behavior being strange. They said the strange part is people applauding Twitter's content moderation for certain topics, while justifying their inaction on others.
> They said the strange part is people applauding Twitter's content moderation for certain topics, while justifying their inaction on others.
There's nothing strange about that either - Twitter only acts to moderate when it has context and/or gets bad press. It's no surprise that American hot-button issues are the most moderated[1] by Twitter, and less sor for heinous, explicit threats to life in a language spoken by < 1 million speakers halfway around the world, or election misinformation in Kenya. That sort of thing never gets on Twitter's radar, and shouldn't come as a surprise.
1. This is a result of resource constraints, and Twitter's own sense of self-preservation. There is only one jurisdiction that can dissolve Twitter, and is also likely its largest revenue source; naturally, that gets an outsized fraction of Twitter's limited engineer-hours and moderator-hours.