It really isn't. It was a desperation move to try to get another wing. They are still really thin at guard. Kyrie and Lebron are the only guys who can handle the ball consistently in the playoffs. If either gets injured, they will struggle.
Korver fits them perfectly, but he is less than they were hoping to get with Dunleavy. They wanted a guy who could handle the ball some and pass, but Dunleavy is always injured. They knew they needed someone to replace him.
It didn't cost them too much, but I still think their roster is flawed.