Couples do not have an unfair advantage anymore then an organized kingdom does in terms of interaction. Yes physically they are closer and can get info for each other by going into the other room and signing in but good kingdoms can just text each other and get the same results at the same speed. This system is ridiculous if you think you are stopping the true cheaters with anything.
This is your basis for the new system no? You don't feel like taking care of the whitelist and couples have some absurd advatange. Way to go after a minority of players and just mess with them completely in war. Meanwhile the game still has ticks, goes down every now and then, no autofill form for thievery or magic, needs 3rd party tools nto be playd properly. So you don't care about big or small issues, except the xlogging couples. Brilliant priorities.