Lorekeeping Metroid: Why the Metroid Manga is not canon

An in-depth look at the storyline of the Metroid manga and how it compares to that of the Metroid games, as well as how parts of the latter developed over time.

UPDATE
A second interview Yoshio Sakamoto comments on the manga has been found:    • Entrevista a Yoshio Sakamoto, creador de M...  . It was held by a Spanish website and features Yoshio Sakamoto making a comment on the manga. According to the Spanish subtitles, he said the following:

“Sí, estuve encima de la creación de este manga y piense que el mundo de Metroid y la personalidad de Samus estan bien transmitidos.”

"Yes, I was behind the creation of this manga and I thought the world of Metroid and Samus's personality were well transmited.”

I got the translation from a Spanish speaker. This does seem to imply his involvement quite bluntly, however Sakamoto gives his answer in Japanese, which was translated for the Spanish subtitles and is here translated to English. To avoid a game of telephone, the following transcription was requested to be made by Sidier who is often active on Discord with things relating to Nintendo and Japanese:

“あの、この漫画を描くときに僕は監修していますのでこの、まあ、ある意味漫画という表現のサムスであり、メトロイドの世界のいろんな話が描かている” (audio transcription)

“Well, I was series supervisor when the manga was drawn, so... Well, you could say it's a way to express Samus in manga format, and depict varying stories about Metroid's universe."

Which is a lot less committal and seems to imply the Spanish subtitles mistranslate quite a bit; Sakamoto merely states he was the Metroid series’ supervisor at the time and says the manga is a way to express an interpretation of the Metroid universe. This is also in-line with his other statement discussed in the video concerning the manga.

SECTIONS
00:00 Introduction
02:13 The basis of the manga's canonicity
14:43 Discrepancies between the manga and games that came out before it
19:37 Discrepancies between the manga and games that came out during it
32:20 Discrepancies between the manga and games that came out after it
37:28 Dread Spoilers
42:28 Conclusion