Wow! That wood is in incredible shape for its age. Heckuva find.
Maybe, I wonder about the information since it’s CNN, probably got a few wires crossed, since she seemed to be focused on the gender of the excavator. If it were in permafrost it could survive a long time, but I’m skeptical that it isn’t fossilized. It is obviously basically intact and very old, however, see my above remark about Antarctica.