The only theory I've heard that makes sense is that he could do it because he was the original founder versus the typical CEO that is hired by the board and strictly beholden to "not fucking things up." With that, they're more likely to always make the safe play and protect their golden parachute.
I will say, seeing how the strategy has worked over 4 years, I am shocked at least a couple boards out there aren't giving it a shot in some capacity. There are like 100+ major companies out there sitting on $5B+ in cash and some of them with just awful trailing twelve month returns.
Those other companies will be closer to the handle part of the hockey stick