For me, continuity is pretty important, but I dont think either Fox or MCU has nailed it. With Fox the problem is obviously the fact that there are several continuity errors and dumb things that need convoluted explanations. The problem with MCU is however how much they care about things that are coming. AoU was absolutely ruined by the fact that everyone knew Ultron wouldnt be a real threat, because the actual danger that is coming was already teased several times. It kind of feels the same with Civil War, it's just another prelude for Infinity War. That's what the series have been for the most part, every movie is a prelude for something that's about to come. That's what I loved about DOFP, it was an old fashioned contained story, that didn't really set anything in motion for Apocalypse. The threat was there and it was severe. And don't get me wrong, I love many MCU movies as much as I love the X-Men films, but it's a real complaint for me.