Too bad, A72 is the sort of thing found in $49 SBC's these days. For the price, it would have been nice to see at least A73, but at least its not an A53.
True, most server ARM processors that come to mind are custom (or at least semi-custom): Ampere, Centriq, ThunderX2. Trying to map them to A72/73/75/76 is perhaps short sighted since those are primarily smartphone cores - we'll have to wait and see how they perform in real world tests.