Yeah it sounds tough but if he'd hired a guy who oversaw what's just happened, he would have fired him.
Taking responsibility means trying to make it right. It doesn't mean taking a hit personally, unless that hit helps make the situation right.
Vengence isn't the same as justice. If you care more about zuck personally hurting than laid off employees being compensated, you are after the former not the latter.
To use the car accideny analogy - do you also think its a cop out for people to have insurance?
"I made the decision to significantly increase our investments. Unfortunately, this did not play out the way I expected."
So, keep him to downsize the company and replace him when it's time to start growing again?
I think their share price has taken strong corrections due to these decisions. I think that's an incentive for a board to take action?
(I'm purposefully ignoring the ouroborus that is Zuck's control of voting shares that protects him here.)