It seems like with these games being played on neutral courts that the favorites have a hard time putting together that point spreading run in the 2n half. Usually the home favs make that run in the 2nd half to cover the spread. On these neutral floors it's much more difficult to do, and when the favs got to make their run they can't find that extra gear the home fans provide.
I never quite realized how important home court was til I starting thinking about it watching these games on neutral floors.