My first thought on spotting this headline was that complex beings generally don't last as long as simpler ones because there are more things that can go wrong. The longest-lasting being is likely to be one that is radically simple, not a compound nor composed of parts.
But then reading further it transpired that "complex" was a noun not an adjective, and "being" was a participle not a noun; and it referred to the construction of a hockey arena.*
(*) Hockey arena. A local billboard taken out by a dental practice proclaimed their support for the facility.