Certainly, it's easier. What I'm saying is, I suppose, that I kinda doubt Bethesda's ability to write a 'good' main story, so I don't really see the point of them clinging to those events at all. Why not move away, New Vegas style, take place somewhere else, where those events won't really matter anyway. I realize that's my personal preference, and that many fans really want to know what's going on with Lyons' BoS, etc. I don't, cause FO3 never managed to make me care about them, quite the opposite. But that's just me.
I suppose in FO4 the Railroad will be the token good faction, and so, no matter how we play, the canonical SS will have supported them in FO5, if that ever comes to be. So in FO5 we'll have synths living peacefully alongside humans. I don't mind that either, but I still think it'll make for a cliche story.