But when you say it like you do, you are essentially claiming that everyone in the top 40% of BU will get a NYC Big Law job if they bother applying - they don't.
How the hell do you know that??? Here you go again with your thoughtless and stupid conjectures...
The point is: BU's median salary is at the BigLaw level. Thus, about 50% of the class have a good shot at BigLaw. 23% of the class end up at NYC. When you take self-selection into account, you should realize that something like the top 40% of the class should be able to go into NYC BigLaw if they want to.
Also, the OP said nothing about NYC BigLaw, only work in NYC. I think it’s safe to say that you can get an NYC job with a BU Law degree.