That is one wacked video.
Smallville helped to revitalize Superman and reform some of the story concepts as the comic book writers saw it visualized into a live action series. The Superman myth was revised.
It also helped to re-write the Supergirl myth during Season 7 by making the comics realize a living relative to Superman would help him to really realize what he lost when Krypton was destroyed with the loss of family, civilization, and dreamss. More science fiction was added to the myth to flush out the characters better.
One of he most touching scenes in that season is when Clark finally got his cousin who recently revived after 18 years of suspended animation that Krypton is gone and they are all that is left. Kara started crying, realizing the loss and Clark told her she still has family and welcomed her to live on the farm.
Clark actually grew up in Season 7 having to keep his cousin out of trouble with the government hunting for alien visitors. Clark's worries of Kara exposing them both had many close calls. In Fierce, the third episode, he had to stop Kara from tearing apart the metal bars of jail to go after people who framed her to tell her to do things the legal way and wait for his friend Chloe to post her bail to get her released.
There is always a translation between comic books and live action. With ten years of episodes, Smallville had a very strong influence on DC Comics in both Superman and Supergirl comics. The title book characters Superman and Supergirl also strongly resembled the likeness of the actors playing their roles in Smallville.
Yes, the death of Superman by Doomsday helped to revitalize Superman. But, so did Smallville.