More moving parts reduces reliability.

Also, most laptops with collapsable ethernet ports do indeed fold down. I've seen dozens of them, but I've never seen a port like the one you posted (probably because it's a terrible idea, but maybe for other reasons).

Although, to be fair, it would certainly drive home the Framework's repairability after the fifth time that the collapsible port breaks. :P

We can make airplanes. I'm sure we can make a folding Ethernet port that is reliable enough.

I will never accept bad design. This is bad design.