Renaming a Next Action is something that's so bizarre and alien to my experiences, so totally outside what I can imagine anyone doing, that I really don't have any response to it.
So... yeah. It sounds like you're working your system just fine, so I'm in no position to throw stones. Different people work the system different ways, and they'll find their own advantages and disadvantages to the various media.
All the best,
I don't rename actions often but I don't see anything bizarre with it. For example during a weekly review you notice some actions repel you and so you go ahead and use different wording, or some projects aren't named as good realistic outcomes, or maybe you want to turn some actions into projects and so on.
I don't do it very often myself so it's not the main reason to use digital system obviously but I doubt it's totally unimaginable process