When you go out of the cave, before taking a left turn to go to the corridor that will lead you out, there is a trigger there that is very near that corner.
The way the map is done, is that you have the wall to your left, and a stalagmite that is to your right, at most you can only pass two side by side there.
Even if you walk, you get rushed by the giants even before they are fully apparent (loading) on the server, which gives you very little time to activate expertize and the like and select them to combat them. Further more most of the time you will get stuck on the left wall and on a stalagmite that is right there. Taking away your escape route and giving you a greater chance to die.
Could I suggest that the trigger for the last spawn going out of the cave, be moved so that this spawn will not be this problematic?
I have died a few times because of it, and seen many other died because of how it is placed.