Certain scenes can be skipped or missed depending on some choices like the "moon gazing" scenes for example, you can also get different outcomes out of some like Elizabeth's train scenes and so on, what he is asking for is more like a roadmap of the content there is to be found along the way rather than a guide on how to beat the game.
But yea, you can just roll back or save scum along the way since you can only scroll back so much, regardless, a checklist of "this is the stuff you've yet to see" would be nice for some of these games