Hopefully all this feedback will be taken into account, when preparing a new event. The fact they removed WWs from this event I understand, the same with boosters. Well, kp aws is a bit question for me, since these are not provided in spire, so I might assume, this might be some kind of experiment, where they try to figure out how do players evaluate event with building prizes only (and looking at data like "which building will be the mostly taken" when it is not influenced by other-type prizes). This opinion might be pretty well supported by statement about wishing wells not appearing in this event in every live official announcement.
Not sure how will Inno develop future events, but hopefully this is not the way. If something is not worth playing it, even though it fits the balance of the game, maybe it's time to rethink it's core idea..