Nothing would shock me either, but I think it would make a lot more sense to start both of them in Appleton.
Chourio only hit .250 in Appleton. He had a hot start, but didn't set the world on fire like most seem to think. (8 homers was impressive but again, the hype he got and is getting seems like 8 is low)
Hopefully, he continues to make strides, but I'm afraid bumping him up to AA at the beginning of the 2023 season might be a little quick. Let him start in Appleton and see what happens, then move him to AA when he is obviously ready for the jump.