It is deeper that that. The threat of a dribbler in your team forces the defence to position in a different way to handle it.

That can open up space that otherwise wouldnt be there, even if the dribbler isn’t actually dribbling at that moment. The threat of having strong dribblers is therefore important to force low block teams to be proactive and more aggressive rather than just sitting back.

It’s not just about «having players with better skills is better».