The patch cycles for the game are slow enough as it is for any relevant balancing. Maybe some hotfixes at 6.25, but at the pace of 6.21 the next actual balance patch is gonna come at 6.3, by which time these changes will not be relevant until the next savage at 6.4 anyways. Also, it wouldn't be difficult to just look at statistics and say, oh maybe a bit of buff for this class that is obviously bad.