6000 tweets is only for people with Twitter Blue, and it counts scrolling past a series of tweets on your timeline as reading them, so it’s really easy to hit that limit even as a paying bootlicker.
For those of us sane enough to not spend any money on that godforsaken platform, it’s only 600 tweets, which is disgustingly easy to hit. Scroll a little through your timeline, open a few tweets to read replies, and you’ve hit your limit in less than 30 minutes.
Something that’d be significantly easier to do if it weren’t for the US’s continued immoral blockade and sanctions? Cuba does not have the resources to maintain the plant purely on their own, and they can’t hit a magic button that will suddenly let them find an abundance of spare tools and equipment to repair their infrastructure in a disaster scenario without wider access to international trade.