How do they do against Hybrids? Or Enclave Starships?
As far as the younglings (hyper-low-health, take-high-damage-from-everything, self-attritioning ships), quite a lot of ships will serve as hard counters against them. That's ok. They'll get additional balancing to make sure they're worth the (already very low) costs of production, but in general they're going to die very very very fast to lots of different things.