They really have to start coming up with different plot points for the stories. You can't come into a story change everything about it and then expect these people to still follow the plot
the tragedy of a villianess does it really well for example (at least i think). like mc made pretty big changes that she knew would alter the plot in a big way but theres really no way she couldve known things would change too much. idk maybe im too much of a fanboy lol
They really have to start coming up with different plot points for the stories. You can't come into a story change everything about it and then expect these people to still follow the plot