Agree on the JS, but again we're talking about stuff literally no one cares about except us because it doesn't benefit the job/mission/cost of the plane at all.

As for the tube, I'm not sure if the 75 is even wider. The -200 is barely acceptable on longer flights and the -300 is awful especially at the gate. Even worse than the -900. Its too bad 2+ door deplaning is absolutely impossible from a spirit of ingenuity point of view with the limited technology we have in this day and age. Maybe some day.

Most of the cramped cockpit in the 73 is self induced by sadistic engineers who didn't care and just wanted to go home on a Friday. Early, because it was a 3 day weekend Friday. If they moved the breaker boxes back a bit (or just made them thinner), rerouted some of the fan ducts and did away with that huge bottom screen that only displays a couple things and literally doesn't need to be there and calmed down the buzz saw trim partial collider it wouldn't be that bad.