Could it be that their compensation is tied to the stock price and sticking around for a few more months could cost them millions as the coronavirus collapses the world economy?
The CFR is currently estimated at 2-3% of KNOWN cases with an enormous number of unreported cases due to often mild symptoms. While it has and will spread very wide, the vast majority of people will not even experience significant complications.
We ARE experiencing a pandemic with significant impact on global economy but it's not a collapse scenario.
However, it is quite interesting that so many timed all at the same (and it seems Bob Iger is the only one most people know/care about).