Ah, now I see your actual problem. You should have made that more clear in the beginning. You are correct, this is the first time they've divided leagues into quarters. I'm still not sure whay you think you were penalized, but they absolutely made it clear from the beginning. From the announcement which has not been changed.
The problem was not their lack of clarity, the problem was your lack of reading the announcement. You looked at the picture of the league table, decided you knew what leagues were all about and never read the text. If you're now looking who to place blame on for being caught short by this change, you'll find your culprit in the mirror.