Yes, I did the testing and if you get ratings of 8 or 9 then that player will not lose morale but GAIN morale each day. I remember that ratings of 7 was a 50/50 chance of losing morale, but no gain, and 5 or 6 rating you lose morale at a good rate.
Since Nordeus wont explain how morale works, we are stuck cursing the devs and management for keeping us in the dark.
Idiots!