Discussion in the trial impressions thread seems to be saying that the schedule for Fall to Spring leagues are incorrect and will stay that way because of a winter World Cup. Developers are likely using the same reasoning they did with the covid schedule in 2021. IE: saying that since it's a single year thing, they can't/it's difficult to code it properly for season 1 (2022-23) then revert it to normal style for future seasons.
Quite a shame since I was actually enjoying the trial and considering a purchase. Say what you will but this kills the immersion for me.