I don´t see a problem with a themeless building cotest. (If I´d let you choose between an apple and an orange you´d still be able to pick your favorite 
)
@Clexarews : This should, of course, be made in the devs spare time. (What a cruel community that forces the devs to play their own game 
)
I think no one expects some giant builds like project spire anyway. A format like in the video I linked would be perfectly fine imo.