You are missing the point. You can't tell people, "like EA did", that the event would last a couple of weeks, and then, take away the main item that the event gives, just a few days later, with no warning at all?
Some people did not have blackrock. They did not cry, they went to work to get it. There was a purpose for it. They now have wasted their time, and there is no purpose for it?
How would you feel is there was a turn in for, "Practice Weapons", i still have mine, and we got a 2nd house for them? What if there was a turn in for anything that most players had, and was worthless, and now is suddenly valuable?
We will have a turn in event for 2 weeks. However, without any warning, the reward items will be taken away after a few days. You can still turn them in, but you get nothing? hehehe
In the sales world there is a term for this, it is called, "Bait & switch".
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)