I think it was already explained but I’ll do it one more time: nearly half of the models have a suppressed system that nearly misses Rochester with qpf (see RGEM, EURO and ICON). The NAM brings a warm tongue and possible dry slot.
They also still have a number of headlines up in Monroe for other stuff and didn’t have confidence level for a watch.
Ultimately, I think we get there, but I totally see their rationale.