"And the former things will not be called to mind, Nor will they come up into the heart".
Think of those who went through any war. No they dont want to constantly remember the events but they must remain as part of the human experience especially if some arse-hole starts beating drums for another go then they can be pulled into line. Otherwise what is the point of the whole damn thing as no one will recall anything and can then go on to repeat it all over and over.
I like being able to treat my memories of the wt the same gone but not forgotten..