You can large pull in this game in a party with 0 healers. with 4 tanks and not even clemency spamming you can mass pull every dungeon this expac and not die. Solo and duo pulls can be handled by a party of 4 dps. If you're a tank in a proper party setup you can large pull a dungeon even in minimum item level. With all of the additional safety blankets of ilvl and a proper team setup, any tank who feels like they can't do more than one pack should jump in the deep end or get off the tank role.