China is not inviting teams either; they're holding qualifiers for their representatives to Champions as well; it's where regional champions go against other regional champions to be the world champion. The logic still stands. Every tournament will have their worst and best teams. Any given match day, any team could surprise their opponents. ASE had expected themselves to be rolled over; but they grabbed 10 rounds against the Pacific runner-ups. For EDG, the stakes are higher for them since they are the returning representatives; and obviously, expectations between EDG and ASE are different.
Every team wants to be the winner; but every team wants to be realistic.