Did you check if that pin was rated for the load or just a hardware store replacement someone threw in? I'd bet half these failures come from a pin that looks fine but was never meant to take that kind of pull, and it slowly works loose till one day it just gives.

Wait, you rode like that for 3 whole years?? A bus mirror actually touching your handlebar is terrifying, glad you switched it up before something worse happened.

What kind of bench work are you actually doing that needs the dock in the first place? If it is mostly keyboards, mice, and a monitor, then yeah a cheap replicator will beat a dock every day because there is just less junk inside to break. The fancy docks only make sense when you need power delivery and video over one cable, and even then half of them seem to cook themselves within a year.