The answer to all your questions is spelled "star" and "wars" [emoji4]Considering how bad things are in this episode, other than Claire, everyone's hair and clothing and face is all clean, etc.
Costuming/makeup did NOT do its job to reflect how bad things are on the characters.
PLUS:
If the Kalyon's are so superior, why were they so bad marksmanship and tacticians.
As for bad tacticians... why did the rebels leave their base to become living targets? And why was the base not covered from all sides from the Kalyons?
It felt like they rushed to get this strip written/approved/filmed without thinking it through.
Over all, this was one of the poorest outings for the Orville.
I see your point. However. Since I was thoroughly convinced where this was headed, it all felt a bit like going through the motions.I thought it was one of the best episodes so far, a lot more action oriented with a lot riding on their success. I also liked the the visual effects. The destroyed moon, the lack of sea life was a nice touch, and I thought it was awesome when the Orville flew again.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.