Well Kmac's move is a DM too... except if the timer expires its legal... I dont know if KMac gave CH some time to do his move after the turn ended... It is "good practice" to allow someone who skipped a turn to go first... in order to prevent a DM on your part, even tho legal.
Problems is -maybe- that Kmac is now acting on pre-knowledge that he shouldnt have... I dont know the situation, but I doubt KMac would have been able to save the city had the "normal" turns been taken.
The DM gave CH an advantage, but the restore now gives KMac an advantage. I dont know if KMac could have seen CH's ship or not and/or covered for the approaching ship, now he knows its comming and obviously goes to counter it...
The ship could just as well be empty couldnt it?
Eventho I think the DM is a fact... it doesnt even matter as to what assumptions CH could have had (correct or incorrect) Ending a turn yourself and starting again the next in a war IS a DM. Accoording to CIVSTATS the capture/raze happened in the new turn... therefor a clear advantage to CH, which shouldnt have happened...
I wonder if the reload -in this case- was the solution due to the 'tactical' advantage/preknowledge KMac now had/has. Would he in -normal- circumstances moved to defend that city? I doubt it....
But ... life *uhm* game goes on... Come on CH, lets finish this game. You made a mistake... no biggy... lets move on.