You can't carry on blindly when you screw up, because you will be dead on the floor...contributing even less then the guy who just self ressed himself. In theory you say you learned something, in practice all you learned from PVE is "don't be in that spot, spot = bad" and will go on looking for a better spot, dying again in the process until you find the spot you don't die at. Then at some point, when you find all the best spots to be in at all times, you can execute the raid flawlessly with your eyes closed. Next raid, repeat the same stuff until "learned"...