Everything that Sue said, plus a bit. New York is a much more vertical city than New Orleans was. There are a couple dozen LARGE cranes that aren't rated for much over 50mph wind that as of the last update I had were still not properly contained. And the main NYC EOC is undergroud and built in a flood likely area.

You don't under estimate a hurricane. Not when you have a couple million people on an island surrounded by a river who's watershed is getting 8+ inches of rain in under 24 hours

And I would seriously question any attempt to say "NOAA got it wrong"- honestly, I smell ideology, rather than reality in that blog posting. Finding data points that fit preconceived notions even when that data source admits that it is imperfect, and then discarding everything else...