Don´t even try to compare this to things like organic webs. They just changed the source, Spidey still shoots his webs like in comics. Even Sandman being Ben´s killer - which is actually arguable if you saw the movie - had a valid storytelling point to it with the theme of revenge and forgiveness.
What is the point of Galactus being a cloud? The comics look is cheesy? A giant in a hi-tech suit is no cheesier than a silver guy who flies in space with a surf board or a guy made of rock. No, you don´t have to design him the exact same way Kirby did, you can update it, but you can stay true to the concept. And why is the guy being a cloud less cheesy? Or why does it make any more sense that a living being who´s a devourer of planets is embodied by a cloud than a humanoid?