I think my reading comprehension is fine. He literally said, tanks would be “tougher on an individual level.” That means they are “More punishing” (another phrase they’ve used a lot)
Both of those are euphamisms for “they die a lot quicker.” He even said tanks are going to need to be “More careful about their positioning.”
You quoted him saying they’ll add utility to mobile tanks. Conveniently left out the quote where he said, “But we’re also nerfing them.”
If you don’t believe me, go watch the livestream. Shows off all those huge tank buffs to compensate for faster DPS, right?