Yeah, that far out ensembles can be wrong, but I think that applies especially getting details like low pressure locations, etc. versus a 500 MB pattern.
However, I don’t think there’s anything wrong with accepting that it could be mild next week. This is your classic EPO dump that always goes out west and in the plains first, and that implies a ridge over the east. So you also have Climo on your side along with the ensemble prediction. I don’t think that is unreasonable.