After an absence from television for 12 years, Star Trek: Discovery launched the third wave of Gene Roddenberry's saga in 2017. One of the lessons producers took from the Great Bird of the Galaxy was to ensure their new series was visually and narratively distinct from what came before. In service of this effort, the storytellers introduced a surprise twist no one expected, that was equal parts genius and harmful to the show. Captain Gabriel Lorca was a villain the entire time, but it wasn't revealed until very late in Season 1. Unfortunately, this affected how longtime fans engaged with the show.
Source：https://www.cbr.com/star-trek-discovery-season1-lorca-mirror-universe-twist/
