Don't gaslight me. If you've read comics that much then you know how flexible comic continuity is instead you insist on nothing changes in comic books, especially with Hickman. I never said Krkaao right now is an alternate time line, I said the possibility is set up for that option if they choose it, the trigger being Moira X. That's how her powers work, Hickman's gone in explicit detail on this. She dies in Krakao's timeline it becomes a seperate timeline from 616, they've fudged things so it might not be so but it is a distinct possibility. Of course it's not an obscure reason, the reason being - she can retcon any time line she's in to being an alternate, instead you'd have me believe Hickman wants nothing to do with her powers any longer it's just 616 from now on. His entire run hinges on Moira X, without her Krakao doesn't get founded. Without her the timeline gets retconned out.
Krakao is in its own bubble in Marvel, its not heavily impactful on what the titles do. They make cameos, but they hardly bring in every detail from what's going on in Krakoa, it's be very simple to retcon them being from another 616 Krakoa. It's far less intertwined with Marvel than his Avengers run was.
Have you read Hickman's Avengers? The precedent in him erasing continuity happened in that, it's how Secret Wars became the setting. Marvel is also fine temporarily overriding their 616 continuity with a new setting then getting rid of it - they did this in Age of Apocalypse and Secret Wars (2015).
Hickman is known for writing things that add to the Marvel universe, rathe then subtracting them, and adding the various time lines to Marvel would fit this philosophy.