Supernatural should have concluded after its fifth season, as it had accomplished its goal of completing story arcs and giving Sam and Dean proper endings. The quality of the show declined after Season 5, and its extended run only proved that less is more. The CW made a mistake by continuing the show past its planned ending, as it lost sight of its future and became bloated and uninspiring.
Supernatural overstayed its welcome on the network and became longer than necessary.
Initially, the show was supposed to end with its fifth season, and it should have. Season 5 provided Sam and Dean Winchester with fitting final bows that were true to their characters. It wrapped up their stories concisely and didn't require the need to find ways for them to go on new adventures.
The show achieved its initial goal of completing story arcs, and ending with a climactic battle felt like the most memorable way to close the series.
By continuing past season 5, it became evident that perhaps less is more when it comes to renewing the show. The canonical ending of Supernatural and the seasons leading up to its ultimate demise show that The CW should have agreed to end the show earlier. Supernatural first aired in 2005 and quickly became an iconic series on The CW. Its intense following allowed it to flourish on social media and gain popularity.
However, the show doomed itself by staying around for too long. The horror-drama followed the Winchester brothers as they hunted monsters across the US and incorporated Catholic themes and biblical stories into its plot.
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However, after Season 5, Supernatural started to lose sight of its future. It should have ended while it was still successful.
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