So what’s the deal with the sudden popularity?

I had never heard of this series until I started reading this last month. I saw a random Instagram video recommendation and thought it sounded interesting. I became addicted to this story, and am about to finish Morning Star. I get on this Reddit and there are tons of new readers just like me, who are experiencing the same excitements and heartbreaks with me. The most recently published book in the series was released 2 years ago, but this series has been around for over 10 years. Can anyone explain the sudden popularity?