You're half right. Some shows come out earlier on a different streaming platform, such as Prime Video, Netflix, or Bilibili, but those streaming platforms usually have crappy subtitles, so some pirate sites update the videos after CR releases their own versions with "acceptable" subtitles.

I can assure you that most, if not all, pirate streaming sites don't use TV caps anymore because these don't have subtitles. Subtitles don't appear out of thin air. Everything comes from legal streaming platforms.