Good intentions gone bad

Have you seen this?  The BBC reports that an older woman in Spain took it upon herself to "restore" a 19th century fresco.  This is how it turned out.

I'm not sure how difficult it is to remove new but not old paint from an aged fresco, but it doesn't seem easy.  Art historians mentioned that if they cannot repair the painting, which is worth a lot sentimentally but not financially, they may just cover it with a photo of the original.