What's the point with that quite lackluster story in Endwalker?

[Rulakir]

If they wanted to subvert expectations, they could have made Zodiark look angelic and Hydaelyn look demonic.
ETA: that would definitely bring home the point that looks can be deceiving

I thought Zodiark might be darkly beautiful, like some kind of gothic prince (which instead is sort of in Pandemonium :P). I figured he was the will of the star that was seeking salvation, surely his appearance would reflect that. I also stupidly thought the box art for EW was based on the layperson's interpretation of Hydaelyn and Zodiark based on stories only to find out later that Yoshi-P took great pains to copy their appearances in game.