Just to note, even when you die, you keep the color of your team, so you're still physically in that team according to the game.
You keep the colour, and you're technically "in the team".
The thing is: You're a spectator. Team colours don't matter at all if you're a spectator, as all it does is show you what team you were on before you were eliminated. If the spectators were their own colour, it would
still mean you're out of the game.
Yet the actual message is not the latter, since the first one makes more sense.
How?
In order to win the game, you need to be the last team remaining. If you lost a few teammates on the way, you still have your team colour.
When the chat says: "Team Red won the game!" it implies that the entire team won, even though a few were eliminated & didn't win.
If it said "Player and player from team Red won the game!" it implies that those specific players won the game.
I get that you think you still won the game if your team won, but I don't agree with that.
But it isn't, so it's a valid argument.
It's an argument based off of something that doesn't mean much (negligible)*
Seriously: Do you want people to farm wins by AFK'ing? 'Cause that'll be a lot more probable in maps like Rome or Mansion.