Bem-vindo ao site:)
O pessoal da Coalizão teve contato prévio com os Genii. Portanto, é provável que os Gênios tenham informado a Coalizão.
from http://www.gateworld.net/atlantis/s5/transcripts/513.shtml
SHEPPARD: What are you talkin' about?
KELORE: The Genii had a plan to combat the Wraith, but they were thwarted when you betrayed them.
SHEPPARD: Oh, is that what they told you, because that's not what I remember.