The fact that they have mines on your spawn zone means the match started sucking long before that.
I agree with that. Personally I've never been spawn camped even in blowout games. I can see that troll bomber who's going to fly on the edge of the map to the enemy spawn just so he can drop a couple mines at the spawn point. That probably would be really rare but spawning into an explosion of your death would suck, especially if your previous death was frustrating (BR into a rock. sadly my most common method of death)