Thought so! I think whoever made the spec map thought that with Yeti being in a winter setting, they assumed it was gonna' be cold so they placed it at D. (SS25)
It may be a little bummer Yeti won't be cold, but it wouldn't be the first time HHN has had a winter/snow house that wasn't cold. Really, the only one I can recall reading that was cold was Winter's Night, understandable since it was all alone in SS 22, allowing them to have it as cold as they'd like.
But a house alone in a SS is not a guarantee it'll be cold, since Cold, Blind, Terror was often reported as nothing like it's namesake.