Originally Posted by
Oz1337
Seems like a very lazy explanation, specially when they even say that QSH should not even be happening (I think I saw somebody mentioning that Consort Yu said that in her lines). At least they should just mention something like the Chaldea summoning system is being affected by the Lostbelts, which I would accept since well, we have Xiang Yu with the body he has in SIN, but with the memories from the Pan-human history.
Keep in mind that arriving at the Wandering Sea and going to the Lostbelt happened very close to each other, so they probably had no time to summon everybody.