De Selby, I agree Alaska didn't really need it, but that's because the prosecutors know that a BS claim a decent citizen should have fled would fail in front of an Alaskan grand jury.
There are numerous cases of malicious prosecutions by anti-gun prosecutors in anti-gun jurisdictions however, which was the impetus for these laws.
I don't have a lot of sympathy for the prosecution in any event. Successfully claiming self-defense requires the defendent to prove they didn't start the fight, weren't engaged in a crime, weren't drunk or stoned, and a host of other factors. If all the prosecutor can challenge after the fact in a warm safe well-lit office is that the defendant misjudged the absolute degree of safety in which they knew they could retreat in the middle of a violent confrontation, often in the dark, in fear for their life, they probably shouldn't be charging.