The point about the epilogues, using examples from F1 & NV, was to demonstrate the series included moral story elements in its decision making and consequences and wasn't just a slapstick set of zany adventures in a wasteland (which it does have plenty of in each iteration), the devs gave more thought than that to the game and created a well rounded experience. If your take away from that was "different endings" then we're not in disagreement, we're not having the same conversation,..... though I suppose we are is disagreement about whether from a design perspective long term implication vs. Immediate result is a better way to explore the ramifications of the decision making process.
I certainly hope we find out more about how they've approached the story side prior to 76's launch.