Yeah I do think the many competing pieces of energy adds complexity which tends to favor suppression (think of tropical season when a phase with the trough on models tends not to work out more often than not). At the same time, the expansion of the precip shield due to models failing to account for the mid level warmth sufficiently, pulls the other way allowing many to score even if the more suppressed storm track is what plays out. So the disagreement as to whether the NW trend is legit comes down to this tension between two factors affecting snow totals on a map