Fundamentally Time doesn't change anything. That is to say, Time is not a change-agent. (OOH! That's good! Please don't steal my new saying!).
Neglect lead to the condition of the cemetery - even as a symbol of relationships, society, or whatever. Neglect doesn't really cause anything, either.
See, things break down. Things start new, then start dying. Neglect doesn't serve to salvage anything - but allows nature to happen.
And get this - honestly, for the cemetery to become rubble, neglect had to have been the case. There was no choice by anyone associated with it.
Let me expand a little bit...
Think of a relationship. Heart-use relates to land-use.
For my marriage to end she and I had no choice in how we behaved. None. Choice goes out the window when talking about reality (or our perception thereof). Same goes for that cemetery. For the reality to happen (dis-array) those associated with it must have neglected it - not put forth efforts to mitigate the eventual destruction.
To answer your question - the use of burring bodies - even if they are later moved - remains. Doesn't matter to the bodies - what matters, though - the tombstones.
If I owned a company and had to move a cemetery to expand I'd emboss the names of those interned onto a monument on the property.
“… the greatest detractor from high performance is fear: fear that you are not prepared, fear that you are in over your head, fear that you are not worthy, and ultimately, fear of failure. If you can eliminate that fear—not through arrogance or just wishing difficulties away, but through hard work and preparation—you will put yourself in an incredibly powerful position to take on the challenges you face" - Pete Carroll.