if this is true then why do the majority of cases that I review only consist of one or two games where only one person reported the person in the tribunal? that doesn't agree with your post
Let's say a player gets reported 100 times in 100 games. An absurdly high number. The Tribunal then begins building a case for the player. The Tribunal would then randomly sample the player's recent match history and pull a few recent games--it could be 1-5, but this number is not related to how many games or reports got you into Tribunal to begin with.