Top quote from the book Death at Seaworld as noted.
Middle quote from one of Seaworld’s ‘truth’ videos: https://www.youtube.com/watch?v=OEJSru3ucds — literally out of the mouth of the same guy who was attacked by Kasatka in 2006.
Kasatka’s attack was immediately preceded by her calf making a distress vocalisation. Being separate from, and unable to see to her calf due to being engaged in a circus act, she was very likely frustrated and showed her displeasure the only way she’s able: cessation of compliance.
I am not making light of the attack on Ken Peters. If that’s what you get out of this, I want you to think really hard about how much you’re missing the point, then go away.