Ya the only pressure in the system is in the O-zone.
Believe it or not, Green's N/O zone metrics last season were near the top of the league.
The entire team counter punches in the N/D zones, so that's why it seems there's no pressure, because there is none.
But when the team collapses to the hashmarks, and allows completely unfettered entry, and then crisp perimeter passing, something's rotten.