If the first idiot who wanders by the forum can write something like this:
why not have the upgrade/update process do it?
These are all instructions with absolutely no drawbacks...
But the reality is that people also change comments, instead of leaving them as they are, so it's only effective if they haven't been changed randomly...
And resetting the firewall anyway... that's also difficult...
How do you predict if the user renames the WAN to "internet" or other examples?
My sarcasm is just to show how difficult it is to program everything...
Let's say the defaults should be unchangeable, even the group names; it's up to the user to configure the rest properly...