Fiction is all about adaptation and execution, though. For example, the novel The Maltese Falcon was adapted twice (in 1931 and 1936) before the 1941 version we now think of as canonical. Pride and Prejudice has been adapted to film/TV at least 17 times! Or, to give more modern examples, there's of course the NuBSG reboot, or how the MCU selectively reinterprets different aspects of comic canon. Speaking as not just a fan of fiction, but also a writer, one of the most fascinating things when analyzing a story is looking at the choices made in a given adaptation of an earlier work - what's left in, and what's taken out.
I mean, let's look at the classic line from Turnabout Intruder, where Lester seems to intimate that women cannot be Starfleet captains in the 23rd century. This has caused endless geek squirming, probably beginning in the 1970s, because it implies a high degree of institutionalized sexism within Starfleet. People can headcanon it as being Lester was cray-cray, and she was speaking metaphorically - that Kirk had no room for women in his life - but that was not the intent. Lester was angry that things had been held back from her as a woman. The level of casual sexism that was dripping across TOS in general is basically just ignored by the fandom in general, but it legit makes TOS unwatchable for some younger women. Why would an adaptation that took the great TOS stories, stripped away the sexism (and the paper-mache rocks) and presented them for new generations be bad?