Let's do math.
Let's say a Tribunal is composed of 3 people. Let's say it takes 3 people to review 1 game.
So 1x3 = 3.
Let's say there are now 2 games reported. It would then take 6 people to review it.
2x3 = 6
Now let's bump that up to 4 games.
4x3 = 12
Currently, there are THOUSANDS of players playing this game. Some math:
1000 x 3 = 3000
10,000 x 3 = 30,000
As you can see, there needs to be an ABSURD number of people to keep the tribunal system functional as the playerbase increases. That means the Tribunal gets incredibly huge, or incredibly bogged down, neither of which are particularly feasible or useful for the game.