Evelynn's charm ability (W) needs to be changed!

Not sure if anyone else has noticed this, but Evelynn's W ability seems a bit unfair at times. You don't actually get any kill participation from it at all if you don't get the actual charm portion of it off, BUT, if you dive under turrets and apply the initial charm portion, it is still enough to draw turret aggro. Something seems off there doesn't it? The initial W cast isn't enough to award kill participation, but it is enough to draw threat from turrets? This 100% needs to be changed. You can't reasonably have one without the other. If the initial cast can pull turret threat, then there is no reason it shouldn't award kill participation, and on the flip side, if it doesn't give kill participation, it shouldn't be able to draw turret threat. Just a thought!!!