I am not disagreeing with this statement but would respectfully suggest it is “convenient” as there are numerous periodic ways to get from campus to the train station across town. It takes 15 minutes and you can arrive very close to departure times as tickets (typically under $30) can be bought electronically. It is however inconvenient if you don’t have the hour and 45 minutes to 2 hours to spend on the Metro North.
I did it frequently for a college internship (things were not as automated or predictable) but used the time to study and found it to be a very effect study opportunity with no distraction.
Good luck both are great schools, meaning Hamilton and VC I agree that you should forget BU.