KRU's scrim partners for this tournament were still mainly Chile, Argentina and Br teams. They only started practicing against NA teams very recently (plus they adjusted their starting lineup by removing Klaus). I agree with your other points, but the reality is that DRX actually has better scrim partners and they kept their core 5, it's not even comparable.
In a few months (after KRU will be settled in Los Angeles and scrim against mainly top teams on the continent) your argument will be stronger.