Would it be fair if Lux's E received the Zac treatment?

I personnaly feel like her E should show a visual indicator to where it will land, especially since they allowed her to make it explode instantly on arrival. Zac's E had a red circle added to it's impact point because the visuals from his spells were barely noticeable, and let's face it, Lux's spells have visuals have very confusing pattern (Her ult's hitbox often feels broken, either hitting or missing targets that it shouldn't have)

I myself play on highest settings, but if anyone has ever played on the lowest vfx settings, they'll know how it becomes almost impossible to see her spells.

Granted, Lux's E doesn't have as much impact as Zac's E, but almost every other ground targeted AoE spells in the game has a visual indicator, or at the very least a projectile trajectory that makes it easy to guess where it will land.

I don't want Lux nerfed, but it just feels like part of her power budget comes froms her spells having poor readability. Maybe she was designed with that in mind?