>>719730216
>I know I’m arguing semantics but legends isn’t main line
So, for what it's worth, I agree with you, but TPC says it's main line. Literally until Arceus, all spin offs were handled by different companies. There is also huge autism about it's Logo which is for some reason important, and it's the same logo as the main line games like Red and Blue and Scarlet and Violet and shit like that.
tl;dr despite being under a different name since it's made by Game Freak they say it's main line.

If you think that's dumb and not what main line means then join the club but you're arguing with the wrong dude, take it up with Pokemon themselves.