But that’s technically not true. If the Star Trek IP suddenly falls into the hands of, say, Netflix, and Netflix decides that, say, ENT is no longer canon even though it was shown on screen when it was a UPN property, and then proceeds to produce a new Trek show that completely contradicts ENT, then ENT is no longer canon because the people currently in charge of the IP have said it’s not, and their new show is. Netflix could also say that Star Trek novels written after, say, 2025 are now canon even though they are not shown on screen, and they’d have the right to do so because they’re now in charge.