Yes vs the nets and wizards. The wiz were at the bottom of the league in 3pt shots per game. Beal and wall were smaller quick guys who work off the dribble and looked to penetrate.
The cavs 3rd in the league over the season and I believe 1st in the playoffs of 3pt attempts per game. Cavs ISO and dish to their guards who stand at the arc. JR/Shumpert and even Kyrie are too tall for korver to have him contest those shots.
I agree w/ your assesment and +- #'s on Korver, but this is a different series against a different offense