Track one is the one adjacent to the western "inside" PATH stairway that was shortened substantially. How would you handle such a short platform with a ramp and the too-far-in-front-of-the-train segment of track 2 right across the way?
And the tracks past 15 (16, 17) have that massive long platform & newer-ish canopy. Is the canopy high enough to put a 4 foot platform under it? My memory says no but i could be mistaken.
I do prefer high level platforms for actual frequent use, but i'm honestly not sure it would really work at hoboken for every platform there.
As far as lowering the track, don't think that would work.
I'm not claiming to be an expert, just seeing if this is being properly thought out, that's all.
Next stop the square, journal square station next!