I completely get what he is saying because we have seen SWs attenuate as they move towards us all season long. But I think its pretty clear that this one will maintain enough strength while crashing into an arctic high for widespread several inches. I think the high is a game changer that really elevates the floor here via isentropic lift. I just don't see the mechanisms for appreciable precip production completely drying up, no pun intended.
Now, I agree that some of these runs, like the 00z EURO, dropping widespread 10-12" are overdone....but widespread 6"+ where it is mostly snow is pretty likely.