Because high dribble success rate should indicate that a player is good at dribbling, but I don't think most of the players on the list can be labelled as good dribbler. They are mostly DM and CM, some even play as CB. Traore is the only winger there. I believe dribbling stats of wingers/forwards should be treated differently from those of DM/CM. Wingers/Forwards tend to dribble more in final third than DM/CM, which means they have less space and are often stuck in tighter defence. Their dribble success rate may lower a lot compared to DM/CM who face less pressure. A success dribble against CB in the opponent's box is different from the one against CF in the defensive third.
If a player has high dribble success rate, it does not necessarily mean he has good dribbling skill or it's his biggest advantage. The player's position should be taken into consideration. As for DM/CM, I think it may suggest that he is able to protect the ball well and wins ground duel a lot, but not that dribbling is his main playing style.