The story was sorta misnamed, wasn't it?
I mean, the pet cemetery/"Sematary" doesn't really have anything to do with the drama. That plot of land is passive and inert.
It's the Micmac Indian cemetery which is the real villain, here, isn't it? And that was a long walk away, and completely independent from, the Pet Semetary.
It would be like taking The Stand, and calling it The Free Zone Committee. Or The Langoliers, and calling it Runway.