I am not saying they should follow the comics... but in fact the phoenix saga includes:
- the build up between jean & scott, they can do it in any x-movie, but they didn't
- phoenix saga with the Shia'r Empire.... none of this is going to happen apparently.
- dark phoenix saga with its own build up. (this alone deserves 2 movies if I was the man in charge but hey...)
Although they can change the dark phoenix story, but the fact they jumped straight into it, with no build up whatsoever, with lawrence and magneto added to the mix, makes it already bad... I dunno what are they trying to do but it's wrong.