How is this viral different from all other virals?

Today is the second day of Passover, the Jewish holiday celebrating the Exodus from Egypt. And this link is making the rounds.
It shares the story of the slaves' escape as if it was told on Facebook:

Forget Charlton Heston.
This is the best version since William Shatner’s.

It also incorporates links to a Facebook app called Yes We Conserve.

They were both created by the same guy. He’s a chemist – and a marketing genius.