In diplomacy you can say whatever you like.
What you did was not illegal, according to the rules at the time. That was told you in this thread several times.
You did not intent to mislead; I'll accept that from you. But that doesn't change the fact that you did mislead.
If you'd planned the Palace jump in such a way that there would have been no dramatic pop change the response might have been delayed, but would still be there. Renaming is a delicate issue and this was trampled upon. Not by intent but trampled on nonetheless.
There is no way you are going to be punished for this, whatever you think other teams demand. Your palace jump was not illegal. And it will not be considered as such. - Your renaming ignited discussion on the rules, and rightly so.
A rule change can never be considered a punishment.
The harm to other teams cannot be assessed by you. I can guarantee you the other teams are not out to punish you; they are out to have corrected rules.
To summarise: TNT is not accused of anything and will not get a penalty. The renaming is now under discussion as the rules on that are shown to be incomplete. A result of this rules-update could be that the renaming of CarpetBomb will be openly notified.
It is of no use discussing this. The decision lies with the admins of the game; Ginger and Regent.