They did tell way beforehand that they were going to nerf the accessories in the very near future.
At that time, before the crone events ended, there were people having them but not not too many. Yet, majority still decided to buy those accessories regardless, instead of waiting.
50% of the cost has been given by playwith, per character. Some people made X characters on several accounts, acquiring said prices times X.
Yet, people complain about "how hard it was to achieve those accessories" and "how ripped off they've got".
Even IF you didn't buy those accessories with those crones - if you were able to get 100m in a month's time playing - certainly your character was/is able to survive without them? I mean, how did you acquire them in the first place?
That aside, a compensation was offered in the meantime, on top of receiving the 'nerfed' accessories when they are due in the refined state they were in. As for the other decorative acc. (or whatever they're called) - which costed a 100m as well if i'm not mistaken, were removed AND replaced by the amount of crones spend. Leaving you with, actually, whatever you had that one second before you bought them.
Even so, in the meantime you did have them, you have been able to multiply your amount of crones even further so certainly - the gravity of the error is rather small in comparison?
A medal for communication? Certainly not.
Crucified for miscommunication? I suppose it could be worse, no?