No one mentioned excessive force except you.
Someone who pepper sprays a police officer can reasonably expect to be shot, depending on the totality of the circumstances, and the fact that said person has now incapacitated the officer, who has a gun on him.
In this case, it might not be reasonable to shoot her given the presence of the LP as well, but then again with the LP potentially incapacitated as well, deadly force is not entirely off the table. Even if we take deadly force out of the equation, it would be completely reasonable for the officer to use an impact weapon such as a baton and/or closed fist punches to contain the violent felon who is resisting arrest.
Yes, if she didn't go to the hospital and require a stay there, she's damn lucky - and there's nothing excessive about that amount of force at all.

