As a tank i can couln't say we only exist as a minnor complementary DPS experience but i can say right now both roles exist in this oversimplifed mindless gameplay experience so DPS players can casually pick our jobs and chill out on the roles with the minimun effort in order to bring more players on it even at the expense of the gameplay value veterans and invested players use to have and i personally hate the current state of our roles.
I have nothing against DPS players but i hate how for the dev team there is absolute nothing but what the DPS players need and leave us in this eternal limbo of trial and error where they only care to try to fix stuff 1 time every 2 years by usually trying to solve problems by creating a new one worse.