Is Twitter's Worldwide Trends not just based on tweet frequency anymore? I went to Twitter to see if people are talking about this outside Reddit and HN and my

Is Twitter's Worldwide Trends not just based on tweet frequency anymore? I went to Twitter to see if people are talking about this outside Reddit and HN and my trends is filled with unrelated topics. The Blizzard one was at 13th position with more tweets than the topics above it. https://imgur.com/a/Ymb9D04 https://imgur.com/a/Ymb9D04