I have reason to believe Nintendo atleast supports this type of manga. I noticed, in Zero Mission, Samus 3 years old as well as the Chozo with her in the flashback looks the same as the manga I saw online.
I could have sworn she was 3 years old. I remember that Chozo that was holding her hand, he was the first Choujin she met, before space pirate hell broke loose.
In any case, Samus was a defenseless child. I liked the strip where Samus tries to aim at the targets and the Choujin tells her "Don't run while you aim". That might even explain why the 2 Prime games do that.