Actually I thought this might be showing a glimpse of how SpaceX communicates internally. Saying "a huge fireball" is probably like saying "the website was down", but those responsible of keeping the website up would probably use more precise/euphemistic terms to describe why and how it broke. Ex: Elevated backend latencies caused the browser to time out waiting for a response. Yes, it's a softer description than "the site was down", but it's also more precise.