The thing all the examples shown in the article have in common? They are designed for teeny tiny baby sized people. I'm 6ft 4in and I am willing to bet that none of the designs are for accommodating tall people.
This is happening even in sleeper train designs too: instead of a coupe with 2 sofas with a table in the middle and 2 (or 4) folding berths above them, you're getting non-convertible suitcase to throw your body in, and lay down all the way, probably looking into a phone. No serious window, no sitting at a table, no standing upright.
Plus, for some reason all the stuff is really thick. Like earlier there were cases for bags under the sofa, with wall made a sheet of steel. Now they're desinging them like 4 cm (2") thick, probably of cardboard, and they just eat space (because train cars have no place to expand, they've been at max widths already).
I have to add that a berth with a rectangular wall behind to lean against, is a torture for anyone's spine -- whether for lower back or for the neck.
I think we have this idea that something can be designed to accommodate anyone and it’s just wrong
You can’t fly a fighter jet if you’re too tall or too short
Should we change the requirement so that anyone can fly it? No, we just say you can’t fly if you’re this size
Not everything is for everyone
“Sorry sir, your waist is too wide, that’ll be $100 extra”
seems like the air is pretty thin up there ...
Paying for premium cabin seating when necessary ought to be within your means, and frankly seems only fair given the height/wage premium is wholly unearned.