@WaterParsley
Don't fear the general with only victories, he knows only one thing. Results mean less for someone's ability than how they go about their business.
Reebok's talent is higher than anyone else's so far. Does he still lose all the time, anyway? Yep. But what happens if he manages to finally get a chance to really shine? What does he learn from his defeats? What happens when he gets on top of the horse instead of dragged by it? Make no mistake, the man's scary. Meanwhile, even some of Qin's greatest generals who've done far more winning than losing are just side-characters and backdrops, easy to forget, and without much impact on the story.
Win/loss is not the measure of ability. Just the vagaries of circumstance.