How much ref bias is Indiana getting?

Obviously, they aren't winning because of ref bias, but there will be some due to the status as the little guy beating all the top dogs. "Ref bias" is a common occurence, apparently, within the SEC - or, at least, as perceived by certain members of the SEC, e.g. LSU+.

This bias will occur. How many pts per game is this bias worth (if only as a reference).