>>23564956
in the first place "canon" is just not a concept here, don't use that stupid word again
what we do have are terms like
"official" (公式)
"official history" (正史)
"semi-official" (準オフィシャル) [used by Inoue]
"semi-official" (セミ・オフィシャル) [used in MS Encyclopedia]
"semi-official history" (準正史) [per Minakawa]
then we have comments on the whole thing such as Great Mechanics 2005
>So, what is the basis for saying what's "official" in the Gundam world? This magazine asked the well-known Koichi Inoue, head of Sunrise's planning and development office.
>"The first thing we have to say is that, where the Gundam world is concerned, the true official--that is, what could be called Sunrise official setting--should, strictly speaking, be thought of as limited to the films and to things that appear in the filmed works.
>However, even if they're not like the above, Sunrise supervises and gives publishing permission to books and games that deal with the Gundam world. Thus, in a broader sense, the original setting that appears in these could be called semi-official.
or Gundam Encyclopedia
>The addition of "*" to the timeline is a method that began with "GUNDAM OFFICIALS U.C.0079~0083" (compiled by Yuka Minakawa, published 2001 by Kodansha). The designation "official" invites misunderstandings, but don't think that material it did not include is unofficial. (After its publication, the Gundam world has continued to expand.) The idea is not to divide things into official and unofficial, and books, games, and models approved by Sunrise are all assumed to be official. However, there is an order of priority to the information, and one could say that it ranges from white to very close to black. (The original anime being white, and from there it enters the "gray zone.")
TL;DR it's not hard and fast rules or unanimous agreement, don't force western fiction issues onto it