I’ll admit, I never quite understood the concept of the ‘Annual’.
It’s usually nothing more than a filler issue with a fancy name. Often it doesn’t even take place in the current timeline, like it’s something that happens before the current story arc or otherwise not a part of what is happening. It’s not always a bad story, they can be quite enjoyable, I just don’t know why the need to have them when they could easily replace filler issues that typically are pretty lame.
Semi-rant aside, I have a feeling this annual was done as a step up to the new Storm solo that is coming out soon. We get a glimpse at her personal life outside the X-Men, and her past as a Goddess. There is an important message here about balance, about how the ‘butterfly effect’ is a real thing. And how Storm is so strong that she really could let the world burn if she chose it so.
Storm is a really one of the most underrated characters. She’s well known but not well used. Though granted, she’s such a badass, writers could be worried about the very real fact that she could just save the day all by her self most the time… and we can’t have that now can we…
ps… that was sarcastic