It was a total cop out.
Besides, one has to wonder why they even told the truth about the Replicators. They had no evidence for any of their "crimes." The stupid Atlanteans admitted guilt whenn they never actually had to do so. At least they did not volunteer their role in the creation of the hoffan virus nor the recent incident with the exploding Stargates.
The court was just odd if you think about it. They never once talked to Teyla, who's people were captured by the wraith. They did not talk to Ronin either and he too is from the Pegasus galaxy.
If you really think about it, this "coalition" is kind of a hollow entity. Why would ANYONE side with them over Atlantis? Atlantis has ships, advanced weapons, ancient technology, and experts in both Wraith and Ancient tech. What does this Coalition have to offer? Why is anyone listening to the Genii? They are nowhere near as advanced as the Atlanteans. They don't even have ships. The Travellers are more advanced than the Genii and they work with Atlantis.