O5-12 predictions

[whiskeybravo]

In fact, Haukke Halicarnassus got her name in essentially the way Shinryu did: people saw her, and named her after a creature from their legends.

I'd have a little doubt they knew at that time while making Haukke HM that Hali would be re-introduced as a boss in it's current version. The Hali in Omega shares abilities of the original FFV Hali (critical hit, ribbit, holy) whereas the Haukke version does not. So we can at least conclude that the Hali in Haukke is not a reference to the FFV Hali except for perhaps being drawn from the void (and thus people naming after "void" legends).