Wouldn't it have made more sense to go as high as possible next to the highway so the majority of the buildings' tenants wouldn't be subjected to the noise (and regular) pollution? Instead everybody's windows are right by highway ramps!Isn't that likely a feature not a bug. We often talk about building "walls of buildings" along highways as an urban design approach to buffer the rest of the area from the highway. I am sure the rest of Cambridge Crossing benefits from the building wall buffering highway noise.
By the way, there's nothing (visually) that draws me in from the O'Brien Highway side either. I'm in the area every week and never venture in.