The thing that worries most about the combat system is the roll for a non-reaction. Like is suggested that crew with lower stats have a higher chance of being in a "what should I do" state rather than doing something.

I can imagine walking on an unknown planet, even with a low attention span, I would be really careful for a long while. So, I would expect all crew to be ready for action and looking around for signs of problems at all times. This I would expect this because self preservation is the state the crew are in.

All of the other features of the combat system seem to be well thought out. It will be fun to see how my crew, with no guns will far in combat.

As for a suggestion:
A full 3D view of the combat is not in the current scope or I expect it is not because that is a significant development effort. But if a top view was provided as a replay or as a live action view, it would enable some visualization of the battle. If it was live you could order a retreat maybe. This could be in the form of dots that represent crew and attackers / hunted on some kind of terrain background. Like a radar screen showing blips of contact.