I've had a few coupler trip pins that were hanging too low and would snag on turnouts. While trying to bend them up a tiny bit, sometimes they completely come out of the coupler. I don't use magnetic uncouplers, so is there any reason I should worry about a few missing pins?
Some couplers use the trip pin as the axle for the knuckle, but since your coupler didn’t instantly fall apart, you should be fine.