Maybe it's a Euro thing, but Colonize is spelled with a z, FYI.
That's an American English --vs- Queen's English thing.
Civilize, Civilise. Rationalize, Rationalise. Colonize, Colonise.
In school, I used to trip my English teachers up ALL the time with that.
Both, you see, are equally and identically correct. Just like neither "grey" nor "gray" is a more-correct spelling.
Who cares? They're marketing comics, I would hardly think they were real official cannon, but even if you want to consider them that, it's not like the break anything. Just move on.
Oh, and since you just tried to nitpick over spelling? It's
canon, not
cannon. ONE "n", not two.