I don't mind if they want to restructure MSQ so that the basic story is still being told, but people can go through it faster.

What I don't want is to make it optional/nonexistent so that dungeons and trials and raids can be entered just by reaching the right level and item level without them being tied to the story

I also don't want it broken up so you can skip parts of it and then come back and redo them later. Unless your story is about time travel, it should flow linearly and be experienced in that same order. If you use a boost, then your character should have done all of the quests leading up to the point where your boost takes you. Something like the inn or new game+ is a fine way of experiencing what you missed without affecting the actual progression of your character in the story.

Essentially, I want story and gameplay to support each other as much as possible instead of ignoring each other for the sake of convenience.