It's normal for Emperor at that very early point, aye. I think rebellious spirit comes from previous revolution pop-up, from rejecting the option to be overthrown and replaced. I'd been getting them for quite a few turns by the time I took the screenshot. So once you've got one revolution, it tends to snowball faster than you can rectify the situation. The report of multiple revolt popups per turn (for the same city) is also true. The rapidity at which the revolution level changes, and revolts occur makes me wonder if it is properly accounting for my game speed (Snail).