Why is the abbreviation of Nintendo Game Cube GCN? [closed]

Playing Mario Kart Tour, there's something I find weird.

All Gamecube courses are marked as GCN, and I can't figure why Nintendo GameCube was abbreviated to GCN (GameCube Nintendo really doesn't sound great.)

Other consoles put the Nintendo before, like Nintendo 64 (N64) or NES or simply don't mention Nintendo like the DS, so is there any reason why the Nintendo Gamecube is abbreviated as GCN instead of something that feels more logical like NGC or GC?

It was officially branded as 'GC' in Asia, but in order to leverage the strong Nintendo brand name in Europe and North America, they tacked the 'N' on at the end:

...it turns out that Nintendo of Japan is referring to the GameCube in abbreviated form as "GC." So Nintendo of America (and Europe) have had to turn around and register yet another abbreviation: GCN. Nintendo of America felt it was necessary to propagate the Nintendo brand name in the Americas so it insisted on having an "N" in the abbreviation. Why couldn't the firm keep it in front of the GC? We just don't know and actually find the new abbreviation very unattractive. If you don't think it's serious about GCN, consider the fact it also applied to trademark the abbreviation GCN.
_{https://www.ign.com/articles/2000/12/13/the-name-game}

And here's the official Memorandum:

^{Original Source: https://cubemedia.ign.com/media/news/image/cube/arakawamemo2.jpg}