FIBA have sent a clear message. The message is that they are absolutely toothless and that abominations like the Serbia vs Greece brawl can continue unabated.
So Antonis Fotsis and Sofoklis Schortsanitis miss Greece's first two matches. Who do they play? China, then Puerto Rico. Ranked 9 and 11 respectively, these are the two most highly ranked teams in Group C, other than themselves. In that sense, the two match ban will impact them as much as is possible, but it still is unlikely that the Greeks will struggle to progress from the group.
Serbia, on the other hand, must be laughing on the other side of their faces. They will miss Nenad Krstic and Milos Teodosic for their first two matches against Angola then Germany. Then Teodosic returns to the squad for the third match against Jordan. Nenad will then return to the squad just in time for their toughest two opponents, Australia and Argentina. The bans are unlikely to impact their campaign at all.
Finally although 20,000 Swiss Francs is not an insignificant amount of cash, I doubt that either the Greek or Serb basketball federations are so cash strapped that the fine will hurt them at all. Consider; what were the gate takings for the match in which the fight occured?
For shame FIBA.