They probably just wanted a “flightsim” domain name and that was available. These tiny island nations sell their domain names as a revenue source to literally keep their islands from sinking into the ocean due to climate change: https://www.news.com.au/technology/the-island-nation-of-tuvalu-is-being-kept-afloat-by-its-domain-name/news-story/9af6c78e14c071013ddd7fa9ac64aa7f
I bought skip.cc, which is from the Cocos Islands, another tiny spit of land doing the same thing. Nice having a six letter domain with my name it for my personal website.