SE needs new content that has mobs highly resistant to physical damage. Back in the day, melee whiffed on Byakko, and did paltry damage to Genbu/Kirin, meanwhile mages were the main source of damage. Now, melee pretty much have acc cap on everything, and can pump out 3k+ WS consistently on most endgame enemies. On the mage side, many of these mobs resist magic damage like crazy.