It looks like it’s supposed to be more greek, since the romans weren’t known for fighting naked, whereas we think ‘greek’ and we think shirtless. Also romans weren’t involved in egypt in any serious way till much later. Whereas the ‘sea peoples’ seem to come from roughly the sphere of mycenean influence, even if they don’t all seem ‘greek’.
The only way this gig is ethically justifiable is if the support act is a guillotine.