It's a problem created entirely by gree because they don't know how to communicate.
People have been complaining for months about the matchmaking.
Gree have created these teams of gamesages and councils to gather feedback and basically save them from having to spend a single dime on their own employees doing the work.
And yet when they implement a change like this not one ducking person at gree says to a single one of these volunteer groups, "hey we're not gonna do any work on this war thing so what do you think of the idea that we just go back to the old matchmaking system from before the 5.2 update?".
No I'm not throwing my hat into the ring for the position of the new forum psychic (the only way communication is likely to improve after 5 months where it has gone backwards). I can state this as an educated guess based on the fact that NO PLAYER OF THIS GAME IN THEIR RIGHT MIND WOULD HAVE SAID YES LET'S GO BACK TO THE OLD MATCHMAKING SYSTEM.
So whilst they're looking into the problem which basically involves the problem being on a list so long that it more than likely won't be discussed in any meeting ever due to a regular stream of newly created higher priority issues which 99% of the time are also caused entirely by Gree.