Change Fiora Passive

I've been playing a lot of Fiora lately and I feel like her main weakness is that she will get attacked by minions when trying to harass because all her damage is from auto attacks (which initiates the call for help from enemy minions). If she lanes against a character that does damage with abilities that character can harass all day without being attacked by minions.

First of all, this makes absolutely no sense to me. I feel like all forms of damage should initiate a call for help. Barring this idea I thought it would be cool if you guys changed Fiora's passive by making so minions didn't attack her (minions don't respond to the call for help). I realized this might be a little overpowered so you could make it go both ways. You could call the passive "Mono e Mono" or something and make it so minions on both sides don't respond to the call for help and let Fiora and her opponent duke it out 1v1. Just a thought. She is "the grand duelist" after all.