I mean, a show tells a story with a start, a middle, and an end. Each of these sections rely on the previous one to build a world that the watcher can engage with it. If one of these is bad, it reflects on the entire show.
And out of these 3, I would argue that the ending is most important. The ending is what the entire story has been building to. All interactions and choices made have lead to this one point. And if all of those choices lead to an ending that is poorly made, it makes those choices that the characters made feel pointless. It leaves a bad taste of the possibilities of a better ending for the show.
I mean, a show tells a story with a start, a middle, and an end. Each of these sections rely on the previous one to build a world that the watcher can engage with it. If one of these is bad, it reflects on the entire show.
And out of these 3, I would argue that the ending is most important. The ending is what the entire story has been building to. All interactions and choices made have lead to this one point. And if all of those choices lead to an ending that is poorly made, it makes those choices that the characters made feel pointless. It leaves a bad taste of the possibilities of a better ending for the show.