Yes, super weenie zone.
The ground up there is flat, or even slopes down towards the north a little by the Ice Gulch trailhead which is where he is AFAIK. It clearly gets much less solar exposure than my lot. Also heavily wooded around. It's a great spot for retention, for sure.
But his reports in late March and April have been kinda suspect, IMO. Zero reason to doubt him up to this point. But the reports of nearly full coverage from a couple weeks ago and 8" at the stake now are not really representative of the general area at all. Maybe in some small zone behind his barn in the woods.