I completely disagree that getting rid of the white haired and ideologically homogenous scions would turn an enourmous amount of the playerbase off. If the end of ARR is anything to go by, that would only increase everyone's hype for the story once these characters finally exit the stage.
Please stop making stuff up to suit your own desires. The scions aren't ideologically homogeneous, but they are immensely popular among the large majority of the playerbase. There's a reason so many little fan-service pieces about them get included. Because the fans love it and love them. They do what actual mature, functional people do in our world - offer their opinions, but then coalesce around a decision and support it. Sadly, we don't have many real-life examples like that anymore, but that doesn't change the inherently logical approach used here.