Posting does not include Exclusive to Event Chests.
So the post is a bug or it’s fraud. You decide which @devs.
Is it because it’s only Exclusive to Event Chests for 4 days? And not the 3 days prior (different Kingdom) or 3 days after release week (same kingdom but not exclusive anymore).
I see how that can be confusing and may cause a paragraph explanation rather than a sentence. Or you could just keep it simple and keep it as written. But have the written words be as how it actually works in the game. 