As far as I am concerned no nerf needed.
SCBs are fine as they are.
They are extremely useful for loners like me who have to face multiple opponents.
They are a godsend in CZs, because they enable me to have fun there for a much longer time.
Why do so many players expect to be able to compete with superior enemies?
This includes a cruiser surviving against a squadron of organised fighters. Not credible.
How is it fun to be invulnerable? Especially by invoking a magic spell that has no justification in game lore?
SCBs are like a crude infinite lives hack, but provided by the developers to satisfy the needs of the shallow pew-pew'ers. Travesty.