I actually like the whole turn of events that takes the actions of Fallout 3 and has that lead to the rise of a very angry dictator in Arthur Maxon. It is one of those things where it was not what I wanted to happen, but I don't really want a videogame that is filled with stuff I want to happen.
I don't even mind that Elder Lyons just died not even 2 years after Fallout 3... He was old.
But to kill of Sarah Lyons in half a sentence on some terminal hidden away in the corner of an office without any implication of the impact that her or Fallout 3 as a whole had on the world of Fallout 4... That is just s**t, it really truly is. I love Fallout 4, but this slap in the face to Fallout 3 is just s**t... This is the person who trained Arthur to fight and one of the key figures that made the BOS in Fallout 4 even a possibility. But you can't even be bothered to put a whole sentence toward that, when there is an entire terminal talking about the 2077 Boston Redsox...