When you look at the knockout stage of the champions league or cup (and the earlier rounds too), it isn't obvious who advanced due to the away goal rule. The game already places a "P" next to the team that advances due to penalties. I think the game should do a similar thing for the team that advances due to the away goal rule. Place a small A next to the team that advances.
In the picture below, it isn't obvious who advanced between Txinbicarl and Dede226 FC. Once the updated bracket comes out, we can see that Txinbicarl advanced. But an "A" next to their score would be nice like I added in the bottom picture. The "P" next to Kapu FC makes it easy to tell that they advanced over Kelantan unitd.
Does this sound like a good idea?