Country: England
Always found it ridiculous considering both teams have to play home and away anyway.
The only thing that would be unfair would be extra time and penalties I suppose but maybe you balance that out by seeding teams? The higher seed gets to play the home game last and benefit from playing that extra 30 mins at home. If it’s that’s close a game to go to extra time then it’s barely an advantage anyway.
Deciding on the seeding would be interesting. Maybe some kind of coefficient that is generated during the group stages to take in goals scored, conceded, strength of opponent etc.
The only thing that would be unfair would be extra time and penalties I suppose but maybe you balance that out by seeding teams? The higher seed gets to play the home game last and benefit from playing that extra 30 mins at home. If it’s that’s close a game to go to extra time then it’s barely an advantage anyway.
Deciding on the seeding would be interesting. Maybe some kind of coefficient that is generated during the group stages to take in goals scored, conceded, strength of opponent etc.