In the real world, yes, but its not the sort of meaty topic that attracts people to read a dev diary. I suspect they were trying to make a mildly agreeable puff piece before signing off for winter break. They knew the warfare system they announced would be controversial, and worried that two controversial mechanics being announced back-to-back right before the devs went silent over break would kill hype. (Could you imagine if they released the wonders dev diary right after warfare?) So they just talked about flags.
I know, I was being facetious
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