[colonial]

> if you're popping in and out expansion cards all the time eventually the ports are going to fail which seems like a really weird design choice

Anecdotally, I've developed a bad habit of fidgeting with my expansion cards by popping them in and out. I've probably put them through several hundred cycles like that and they still work fine - I think the fact that the cards are "rail-roaded" into the slots helps a lot, since it makes it very difficult to apply pressure at an angle to the internal USB-C port.