What’s the deal with the Invincible cosmetics?

I don't know if I would call these creative liberties, but a lot of the cosmetics are based on stuff that never happened.

The Immortal was never alive as just a head.

The sequids never interacted with Burger Mart.

Idk what's going on with the new Allen emote.

And the funniest part of all, the whole set is called "Guardians of the Globe" despite none of them ever being on that team.