He's definitely barely a vessel but think about how much force would go into a punch that wasn't held back. An outdated example would be the robot tests in the very early chapters. If a human that didn't have any kind of force mitigating quirk was hit by that it would be an instant splat. They would look like pic related in under 1/100th of a second.
I'm pretty sure all might in his prime had enough punching power to send his victim's molecules to the neighboring solar system.