I read the narrative every time, it really drew me in as to why I was palying that certain scenario and strategy. It's the whole reason why walpurgis is walpurigs, it's a great story to envelop yourself in while your playing a game you enjoy.
But I acn see where Jim is coming from with the limited SS pool to level the field. Someone who has every model from a faction will have the ability to higher the most ideal crew every time. Whereas someone who has a limited selection to start with will struggle with certain games. So having a limit forces the person who has everything to select there models more carefully and hope that they fit into the majority of strategies and schemes available.