I still stand by my request: Have Blitzcrank retract his arm after missing a Q!
YOU NERFED THE WRONG ABILITY. Change his Q to retract after a failed grab!
Not only is it aesthetically logical, it would also add counterplay to his Q, which most would agree is at a frustrating position as an ability.
Elaboration on the aesthetics of his Q: currently if Blitzcrank were to miss his Q (say it is dodged), the skillshot (arm-tube, fist) disappears immediately after reaching max range, an illogical movement for a skillshot that is physically attached to the champion.
Counterplay: Ending "Lag" for his Q would provide an opportunity to attack Blitzcrank, as punishment for missing a key skillshot for engagement, and usually a guaranteed kill.
Please notice my proposal, and consider this change.

/

Not missing, but stopping. You get the point. :P