Why does slipstream travel need an organic pilot?

Why are organic pilots required for slipstream travel?

Organics are better than AIs at interpreting slipstream through intuition.

Slipstream navigation depends on intuitive interpretation that the setting assigns to organic beings. A ship AI can control the vessel's systems but cannot reliably replace that judgment. This makes trained organic pilots a critical dependency on even a highly automated cruiser. Protecting a pilot or keeping an emergency pilot aboard preserves the ship's ability to travel faster than light.