I must agree with my beta colleagues. I too am disappointed in the building metrics offered by this event.
Maybe you've spoiled us by the bounty of the Hero Event (because I think that was a HOME RUN) - but your event buildings are being "judged" by the gaming community very "studiously". I concur. Here are some of the things that seems to be in fashion these days - and the technical (empirical) designs we're using to measure them:
1) FP: At least .45 FP/square, if not .5.
2) Attacking Army Attack: at least .8 - 1%/square
3) Attacking Army defense: at least .9 - 1.2%/square
4) Goods are bonus items, Treasury goods are too.
5) Fragmented offerings (such as from the Golden Orrery)
Hero Event took a FRESH look at game buildings, and I think (again - not to harp on this) that you did a FABULOUS job with that event, and I spent diamonds here in beta, and in BOTH worlds I play in.
I know everything SHOULDN'T be a war-only building, but if you want us to play the events, there has to be something of interest to play for for veteran players as well as newbies.