As I said. They are either all mini-games or not mini-games. You can't chop and change the definition for different parts of the game to suit your agenda.
As to clutching at straws, what straws are they?
The straws you're clutching are the ones you'll use to attempt to deflect any criticism of the FSS.
From wikipedia:
A minigame (also spelled mini-game or mini game, sometimes called a subgame or microgame) is a short video game often contained within another video game, and sometimes in application software or on a display of any form of hardware. A minigame contains
different gameplay elements than the main game, may be optional, and is often
smaller or more simplistic than the game in which it is contained.
Relevant points highlighted.
Clearly the FSS meets the criteria for being a minigame - both being unrelated to flying a ship (or driving an SRV) and undeniably smaller and more simplistic than ED as a whole.
As to the System Map - it doesn't provide any
gameplay elements since selecting a body is not gameplay, nor is looking at a picture or reading text description. The map is entirely passive - there's nothing you can do in the map screen to change the content of the map - so again, there is no gameplay. Consequently, it can't be a minigame.
Simply being 'out-of-cockpit' does not make something a minigame. The FSS would be a minigame even if it was part of the main UI, rather than being a separate screen.