The way how most of the X-Men were killed off screen was a disgrace imo.
Imagine if we get a Thor film next in the MCU and its just Thor and Hulk that are returning and the rest of the characters we've seen in previous movies are missing in action for unclear reasons. FoX eXecs only really care about Logan and Xavier, well in terms of the OT cast. Whilethe younger version is another can of worms that I don't want to complain yet again.
To make it short, their plan post DOFP was a mess.
But the original trilogy WAS about Logan. The trilogy is squarely built around Logan's journey of self-discovery, his development into a hero, and finally, a leader. The X-Men are ancillary (supporting) characters who serve his development. And the movies are better for it, becuz it's done well. The filmmakers (writers) had a story to tell, and they knew how they wanted to tell it. They knew who their main players were, and they knew what their stories would be.
Knowing this is an absolute necessity, and that's where Fox went wrong with the PT. Building the story around non-XM. The OT worked because the conflict is compelling, Logan is our in to this conflict, and we grow to care about the characters through him. The Last Stand IMO works better than Dark Phoenix as a conclusion because we care about Jean... Through Logan (and to an extent, Xavier as well). We know how much she means to him, and how much they've been through together.
Whereas with Dark Phoenix, they are trying to mine from a foundation that is shakey at best and nonexistent at worst. When Raven dies (one of your leads) and nobody cares. Nobody feels
anything. You have failed at one of the most fundamental aspects of film, making emotion. Making people feel something. A Dark Phoenix adaptation is nothing without this.
Which leads us to Logan. IMO Logan is one of the greatest CBMs ever made (easily up there with the Dark Knight) and the perfect conclusion to the FoX-Men saga. Almost every choice the movie makes is in service of it's emotion. The X-Men function the way
they always have in this franchise, and that is to serve Logan's development. The X-Men being dead create the dramatic context of the story. Xavier personifies the X-Men in this film, or rather, the ideals/dream of the X-Men.
Can this dream live on without the X-Men, without Xavier and without Logan? Can hope prevail in this seemingly endless onslaught of loss and tragedy? The answer is
..Yes.
The X-MEN play a very important role in this movie. They aren't physically present in the film but their thematic message is weaved into theme, and what I think the dramatic question of the movie is ^^^ The X-Men live on through Laura and the next generation of mutants.
Logan is the "Endgame" of this franchise.