I really doubt that, he's too solid. IMO This is really a non-issue because you can poke with b1 chaingun if they think they're slick and can punish your strings.
GL has tools that in the hands of a player with sound fundamentals are incredibly fucked up.
On a related note, I played a high level cyborg for the first time yesterday. Easily his worst MU and possibly only one he clearly loses.
The reason why it's so bad compared to other zoners is that when you fight other zoners, the only damage they get are from your mistakes so you don't have to make moves until you're sure it's safe. Cyborg FORCES you to actively move at him while simultaneously navigating a silly labyrinth of fireballs, air fireballs, missiles, and grappling hooks.