Cho'Gath silence still affects fizz while in Playful

A couple patches ago riot fixed the annie cone stun where if you flash out of the range you would not get stunned. Well i tried to play fizz today against a cho'gath and he was able to kill me while in trickster, the second part of fizz e, and yes i know about how its coded blah, blah, blah, can we please fix this? it makes unfair gameplay on fizzes end.