It might be abused as you can rename commanders to confuse MP enemies.
My brother has suggested a solution to the naming business: adding some kind of name tag to a commander that is displayed for you only. This way you can rename your commanders without bothering other players with stupid or offensive names.
This will probably not be in the release Version, but perhaps in an early patch.
I don't see the point - or rather argue against : it's a perfectly valid strategy to confuse or infuriate MP opponents with commanders name !
Now I can't honour my generals with "Lizard bane" or such other triomphal name ? Not good at all ..