It is your responsibility as someone who makes an automatic data import to ensure that it is nondestructive. It especially needs to ensure it does not destroy any data that has been manually added by a human editor, and does not blindly duplicate data.

A 46% error rate as in this case is not acceptable for an automated report. I do realize and accept that the other 54% were at least partially. Others of your (unapproved) imports that had an error rate below 10% were left alone by me, I have only reverted those that destroyed a significant amount of human-made edits.