Au Fait is probably the #1 team in America right now, unless you count Team 64AMD's Overseas division as American as well (but that team is mostly Korean). They are also at the top of the WC3 Pro-League right now, and will try to prove themselves against more international clans in the upcoming season of the WC3L.
Some points aF_iLuSHa talks about have to do with the current competition factor in the NGA WC3 Pro-League as of now. One thing Ilusha suggests to the NGA interviewer is to allow European teams into the NGA Pro-League to prove themselves against the American teams on U.S West server lag: Do you think all of the teams are generally weak? What would you like to see in future seasons of NGA competitions?
Yes, I think there is no strong worldwide team in the NGA except us at the moment. I would like to see European clans admitted into NGA, and let them prove themselves on USWest server lag, like USA teams do on Europe for WC3L. Interview Link