It's spin. When people exploit the game Bungie doesn't ban people in pve. They just remove it from the game. People were using an exploit during last FR where they'd run into Lost Sectors. Shoot the enemy supplies. Run back out, instantly reset the dungeon, rinse and repeat. Just like the Loot Cave of vanilla Destiny, Bungie doesn't want their game played that way. So they remove the incentive to do so. ...and they don't have to scold anyone.