if you remove risk from Zed then you also need to remove counterplay
One of the most common comparisons I see is between Zed and Talon and people will say that these two do essentially the same thing which is completely incorrect.
Talon kills you in less than a second while Zed kills you over the course of 3 seconds unless you just face-tank him and let him land 2+ Shurikens.
If you want to add risk to him, you have to remove counterplay because you cannot give a champion comparable risk to a next to zero counterplay assassin while leaving them with many ways of countering their burst.
also true sight doesn't reduce Talon's damage