lets not forget about veigar.....
still deficient in a 1v1. still dependent on his team to place his stun without being super punished for it (whether it be other poke, cc, or just general dives) and even if he places the stun, its still mandatory for the enemy to misjudge the stun range and stun themselves.
veigar doesn't benefit from "trapping", and at this point hes only being played mid on occasion for his stun alone over other mid laners. said by multiple streamers.
veigar just isn't a healthy champion. its stun or bust. Q isn't poke. and meteor can not be landed without some form of CC applied. and R range means someone is dieing whether its him or the diver is up to eachothers build.
at least veigar could pick and kite pre 5.4, now he can only team fight.

etc.