To be devil's advocate, NU placed second in the conference last year but could just as easily have been ninth had they lost (to a team that had already beaten them once) on the last day of the season. So there is the optimist's side that said "Second! Yeah!" and the pessimist's side that said "but we were almost ninth." Given that most basketball analysts and reporters use historical gut feelings, particularly at this time of year, it makes sense that NU would be below the likes of Indiana, Wisconsin and Ohio State in mid-November, despite last year's FINAL results.
Now, Katz has NU as #27 compared to the national rankings (no votes received at all). Maybe every pundit has NU already 26-30, but that's unlikely, because if that were true, there would probably be a few #24 or #25 votes sprinkled in. More likely no one is really thinking of NU...yet. Katz, on the other hand, has connections to NU and I'd have to think is more in tune with what the team looks like than most national voters. He sees a team on the precipice. I'm good with that.
TLDR: If NU keeps winning, none of the early reasons for them not being ranked highly will matter. So keep on winning!