Besides all points mentioned already, I just can't think of a way to protect the pin-connection from wear in daily use without adding an additional shell or individual screws, which would make it even more bulky. Simply haven't seen a single miniature socket yet that works well under constant external stress.
Regarding the proposed design, with all it's sharp edges and deep ridges I'm already looking forward to weekly lint removal sessions.
In terms of total energy waste it might be worth considering that there's not only one logistic process anymore but a mere 5 to 10(?) with each has it's own packaging, transportation and handling footprint. So it's debatable that the total environmental impact might be actually worse than that of a 2 year life cycle smartphone.