These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Camelot
Camelot (musical)
Harsher in Hindsight: Used in-story. Guinevere, in the beginning, seems flattered by the idea of her being the subject of a war. Later...
Magnificent Bitch: Morgan certainly knows how to swing a crowd. Mother Sybil is also a master manipulator and it's implied that she's even able to influence events from beyond the grave!
The Scrappy: Four episodes in, and there's already an overwhelming number of viewers who consider Arthur himself to be this. It's early, so only time will tell if he can be Rescued from the Scrappy Heap.
As of the end of the first season, he's still not very popular.
And since it turned out to be the only season, he never will be.
They Changed It, Now It Sucks: The reinterpretations of the Arthurian legends, especially regarding the main characters, didn't go over well with some viewers. Of course, the legends themselves have always been subject to some kind of reinterpretation... not often with characterization though.