Ronald Held wrote:
The Phoenix did not seem to have AGS nor deflectors or IDF. I might agree to the last on the launch phase
True, but they gradually accelerated to warp (which starships don't do), had a limited crew, and didn't go very far. If we wanted to leave the solar system, we'd have to deal with the asteroid belt, the Kuiper Belt, and the Oort Cloud. Without deflectors, the ship would be toast.