Cyan needs to be changed because the fundamental thought process behind the perk is completely at odds with the entire saber system. If it was a matter of balancing cyan, you could just make the perk weaker. But the perk needs to go because it is in conflict with the other mechanics of the system and because it does not require any skill to use. In-fact, it requires an inversely disproportionate amount of skill to negate the perk. What I mean is, you need no effort to use cyan, but you need alot of skill to negate it.
Anything that takes no skill to use but alot of skill to defend against needs to be looked at.