Thanks guys,
I was feeling it was wrong too. I mean, it reminded me when I was 10 and tried my first few Civilization games... I didn't know you could set units to "Fortify" or "sleep" and so didn't have to cycle through them at EVERY turn... I didn't like having defensive units because of this lol. When my friend showed me the feature I almost let a tear slip out... 
That being said, I also noticed this would apply to ships set to Guard or Fortify...
I didn't check if it applies to units on the field. Most likely.
Cheers,
V.