Well this discussion of pilots being forced to fly always repeats itself unfortunatly. If the chief pilot or boss forces you to fly, go tell him to do the flight himself. It is not always easy to now your own personal limitations, if you do not have experience counting in your favour, that will always be a risk however don't risk the lives of others if there is doubt.
But was this really an issue in this accident? Maybe this pilot just got caught in the middle of it - weather can build in those areas very quickly and met reports are also not the best - unawareness so to say. I do not think flying in the Delta is so much different, I think we will always be confronted with these issues in different ways and it depends on our personal maturity on how we deal with these issues on a daily basis booiling down to the quality of decisionmaking. Poor decisions in the air will hurt a lot more than getting fired.