perhaps the real issue was arresting the truck driver for vehicular homicide?
In City Kirk and co had no ability to change things - it was all up to the Guardian. But in “save the whales” they readily changed Gillian’s future. So I continue to argue this could be changed based on Trek time travel rules. Klingon priests notwithstanding.
I agree with you. The only problem that matter here is not that if Trek time travel can change the history or not, but whenever the show maker violate the canon of one TOS episode. And the power that prevent Pike to save himself is not because of billions of death consequent, but the enrage of many canon guardian fans.