An Idea for Turrets

I think we can all agree that turrets are too weak currently. Non-tank champs are capable of soaking turret shots and walk away without much consequence. An idea I had was to give the turrets a three hit passive similar to Vel'koz's Organic Deconstruction, something akin to the third shot dealing 2-3 (3-4?) shots worth of damage to the target. This way champs can't soak near as many shots and would need to respect the turrets more for the purpose of diving. In that vein, for high level play dive can still be done safely if the aggressors can either get out before the third hit or if they can juggle the turret's aggro correctly between multiple players. Overall this could make solo dive far more dangerous and if the defenders can lock an enemy up under the turret and spam their mastery emote let the turret damage stack up.

Any thoughts on how this could be improved?