I think the empire line works for a belly that's lower. Like a c section / post baby overhang type thing (like mine!)
But if you have a higher belly, like a pregnant tum, that starts under your boobs it just sort of makes a shelf for the fabric to drape on top of and looks really noticeable and pregnant.
But agree, OPs linked dress is an empire line. Perhaps the real one isn't.
I don't know that I agree with your interpretation of 'where your eye is drawn to' OP, because my eye is drawn right to all that frilly ruching.