There’s no secret about it or a question of its true.
When the Cleveland Cavaliers selected Darius Garland with the fifth overall pick in the 2019 NBA Draft, they were choosing to create a small backcourt that featured two players whose weaknesses overlapped.
Neither are elite playmakers in terms of their ability to create for others. Neither are elite defenders, due to their lack of size and mediocre defensive technique.
They can both certainly improve in both areas with film study and experience and their effort on the defensive end could help minimize issues that will exist because of their stature.