This is fantastic advice and strategy. I do the same thing, for the additional reason that it forces me to reexamine my configuration, and to document the more complex aspects of it so that I have a better guide going forward. It also forces me to go through the new Preferences to not only set my previous options, but to see what new options there are. If I screw something up, I have the original to refer to.
I’m going to start fresh with N14 the same way.