I think the tombstones were perfect in their meta tributes without making them a part of some story. They were just jokes. Then WDW decided to get cute and add stupid crap like the Dredd Family, the sailor tomb blowing bubbles and that other garbage.
Yeah, subtley went out the window and the concept of the ghosts rarely manifesting themselves until they materialize later in the attraction was destoryed.
Now we have a queue of 1313 Dead End Drive.