I've never noticed this. Maybe I'm not super tall (5'8"), but eye-level for me in an Amfleet is about baggage rack height. The "closing in" is above the baggage racks, so it really feels no different on an Amfleet vs. a Horizon.passengers who are walking thru the cars will not perceive the closing in feeling of the circular shell near their eyes.
I'm not in an Amfleet cafe that often, so I don't really have that as an immediate reference in my mind (just the coaches), but even still, the times I have been in one, I don't recall having that feeling.