Now would be the time for Kotick to divest, as he's riding a huge cash high and record numbers from Blizzard. These 2021 numbers won't ever be beaten.
For his legacy, if he moves to shutter Blizzard and move to divest and license the IPs, this protects his legacy as a CEO.
It's called going out on top. Blizzard earnings reports for 2022-2025 won't be able to damage his record if he makes the move now. He'll be heralded the hero who took action against the tyrant renegade company among boardrooms everywhere. He'll thump 2020-2021 earnings as proof he was king of the golden goose.
If you think a CEO of Kotick's stature won't move to protect his own market value-- you'd be dead wrong. That's just not how it works. He wants to minimize damage, including damage to his sterling industry reputation and legacy as a CEO.