I suspect they're just out of date. The tournament-style dogfights meaning Huge ships start with full energy has been around for a while; the full-energy-including-guns is new.
Combined with the change to Epic range modifiers at range 3 & 4, it's pretty clear they're trying to get the Huge ships to actually be worth the points. Even starting fully charged, they're not there yet, but I appreciate that they're trying. ![]()