Pretty Graph and if most of the 89% of the players that think War-Roomba is less fun than playing with Carrier 12m radius quit the game than their isn't a problem! Mission accomplished.
This nerf will most likely make the new pie graph look at more even, but it comes at the expense of player QOL. Nerfing 89% of your player bases QOL experience to 1/5th of what it was before (i.e three years) is the equivalent of slitting your own wrists in a F2P market with so many games of similar productio