Yes the "i didn't know about it" isn't a excuse, if you missed it sorry move on with life. Do people go into a store to find out last week the product they want to buy was on sale last week and demand that they get it for that same price cause they didn't know about it? Well working retail I have actually seen that but they are told no they can't get it for the sale price that was selling for week before. Now people will argue that well they can still get just have to pay a higher price, true but even if SE stuck stuff in cash shop then people would complain that the other players got the items for free in the game. So there is really no way to make the people that missed it 100% happy.