Yeah, I wonder how the EU will deal with people who use that law to hide evidence of their misdeeds...
There some people who I've only tangentially heard about who, while not being charged with anything, definitely left a trail of broken promises, messes, blathering, whining, and excuses in their wake. Not that such people usually get called out by name in a blog post, but when they say "X is true" online and then someone else proves them wrong, I'd hope they can't use that law to just sweep their foolishness under the rug each time.
Some people need to have such things remembered, so others have an objective historical record, rather than only having subjective bluster to listen to.