Air travel significantly impacts recovery. I’d be concerned if they were getting in Friday and then playing the following day. That does not appear to be the case. They should be fine. I didn’t look at the data that you posted, but I suspect that there is a far more significant corollary with NBA and MLB teams traveling then playing [poorly] then teams coming up two days before the game.
Edit: reading through this thread, the issue is not traversing time zones. The issue is traveling in a plane. It has a dehydrating effect.