The Goddard video wasn't saying there is never any data in these locations. Just that on that particular month in that particular year there was no (or more likely inadequate) data yet they were able to declare that region as having a record high in that particular month in that particular year ie they fudged the data.

If they have no, or incomplete, data they really aren't in a position to make assertions about the region. Well you can, but only if you're trying to create propaganda rather than science.