I wonder if his ill health had anything to do with the timing of the uprising.
Since?
He’s been in and out for years.
Papa Doc, the Shaw, the Soviets....when ever a elderly strong man, in power for a long time goes, chaos. They stay in power by having everything( dimensionally ) run through them. When they get sick, factions form with no clear, legal, succession.
The uprising didn’t kill him, him living so long set up the uprising.
Follow the money. That will tell you how sick he really is.