So I was reading up about it a little, and apparently the lady did get some kind of spoken agreement from the priest that she could restore it:
https://www.bbc.co.uk/news/world-europe-19349921
"(The) priest knew it! He did! How could you do something like that without permission? He knew it!"
and the priest then washed his hands of her once she botched it.
That being said, the piece is getting so much attention that the little church is raking in donations, and the woman is now sueing for a piece of the pie:
measuring cell stress (literally how much you can deform a cell) as a factor that can influence its development is a bit of a hot crossover field in Physics and Biology atm