No, the gist of the article, which I recall was part of a geology class - large hunks of meat like wooly mammoth mammoth do not lend themselves to being flash frozen. The implication was that temperatures shifted to well below freezing in a matter of seconds, the result of some cataclysmic event. Again, it sounds like a UL to me...
YMMV...
When Toba in Sumatra erupted 75,000 years ago, ocean temps worldwide plunged about 10 degrees F for over 2,000 years.
But AFAIK there has been no supervolcano events in the last 30,000 years to explain mammoth problems.