well i can understand that fp amount for the new levels is decreased a bit... it also invites the possibility that even more levels could be added later (leading yet to a 8 or 9 fp building again perhaps). just remember, this is a building you can construct multiple times, and pretty much add again forever, unlike event buildings (which are only available through their events, and eventually through AD, but that is bound to a certain amount of luck, plus you pay for them as well, whereas the statue is free pretty much
), so keeping them at 9 fp (or higher at future levels) might seem overkill right now...
also, we already have an increasing powercreep on event buildings making the ones of a year ago and sometimes even 6 months ago quickly worthless compared to the new ones, do we REALLY need this "free" building also contribute greatly towards this powercreep? or do we really need to end up with 50% attack power on event buildings in a year or two at the rate it goes right now?