I don't get why more fans aren't concerned about this. Krakoa is repeatedly stated to be more than a plant or lump of rock. Heck, we saw how dangerous that little bit of it in Aaron's run could be, now we have a large island that has all the mutants it wants.
I don't think Moira really likes Apocalypse, or at least 616 Apocalypse. She seems to see him as an idiot.