While the actual "assignment" part of the blocking may be right (most NFL teams that run true zone, not pin and pull use covered-uncovered with a counting method), its implementation is bad. There is not nearly enough lateral movement occuring, especially after contact. Not to mention that there is no difference between inside and outside zone runs in the game other than aiming point.
Cutback is not okay. For example who should have cutback in a quarters defense? The backside safety. That never happens, and its not just in quarters defenses. While scrape responsibilities may appear okay, I don't really think that they are, everyone just tries to take an outside angle to the ball carrier.