last match argentina win 4-0 from america, and im sure argentina will be the winner in this year of copa america

this is the last competition for messi in with argentina time.
The last match of mexico against chile is 0-7 so if you are using this crazy scoreline to determine the winner for the copa america then based on this chile is the winner isnt it? both chile and argentina has won with quite many goals before so you cant use the scoreline to determine who the winner will be , that is just crazy