Furiosa made me realize that this kind of storytelling, one that relies on worldbuilding and often prior-worldbuilding is the (or a) current way we approach movies. I mean pretty obvious considering the primacy of superhero movies, but worth accepting to better understand what's going on.
I've come to believe that one of the interesting aspects of the Mad Max movies is that often (not always) director George Miller makes them using the current popular language of cinema -- Mad Max and Road Warrior were Ozspoitation, Thunderdome (though admittedly not entirely his vision) was a Spielbergian blockbuster. Furiosa works wholehearted in the current vogue, building off and elaborating Fury Road. Not judging really, just observing. It's where we are now.