Not everyone values "dead is the only condition that matters." There are other ways to impact the story beyond DPR. This isn't an MMO where the only thing that matters is killing it faster because there is no narrative consequence to how you did it. There is a story happening in the battlefield that can impact the story after it is over.
Some people want to have fun along the way. Some want to be able to control the battlefield on top of the damage they would deal. Some people want to kick the enemy off the cliff with a push, or grapple them or knock them off balance to slow their escape to get reinforcements, or embarrass the BBEG by knocking them on their butt, or disarming them, which can have a narrative impact. Some want to kill 2 goblins with 1 swing. Some want the reliability to deal DOAM because they are that good at wearing down their opponent. That can be terrifying narratively as long as the DM buys into it and lets the warrior have that level of impact on the story with their combat styles.