My biggest problem with irelia is her hidden power: She can't miss farm
"Bladesurge deals 70% increased damage to minions. Bladesurge's cooldown is refunded if the target was marked or dies to Bladesurge."
She can't miss farm and you can't make her miss farm. Keeping the costless autofarm button that has no tradeoffs has been the biggest mistake of the Irelia rework. It makes her overall to consistent and efficient at scaling and wave management. Lower the damage increase to minions and increase the mana cost.