Huh. I first started listening to 538 in the run-up to the 2016 election and started really paying attention to them precisely because their 30% figure was so much higher than all the other polls. It was shocking to me then (and still is now reading your comment) that people didn’t seem to understand that 30% in the context of that particular election and that particular candidate suggested a remarkably high chance of winning, not a really low chance of winning. It’s a strange thing where people seem to think that less than 50% = not happening.