I'd guess it's referring to Einstein's "spooky action at a distance"
The spookiness here is of similar nature as the spookiness how the eurasian continental plate seems to fit snugly with the american one although they are now quite far apart - i.e. we should be able to figure out which past events led to the current configuration.
I would call this result 'really cool' rather than 'spooky' but neither of those are very specific terms ;)