Balance: Unkillable Battleships

[Knjaz]

JumpDrive Mk3 is used to escape from fights while using Cloak Mk2 Adv. to escape is almost impossible. And while using JumpDrive you cannot be disrupted, you are not deshielded and you still can use CM to a certain degree.

Please explain me how exactly JumpDrive Mk3 is unusable to get out of fight alive.

I was talking about what would happen if such change would get implemented, where JDs can't get used to gtfo from a fight, since that is what most people here are pointing at as a "possible solution".

P.S. will be able to answer Yber later.