Simone Giertz made an update on her behalf.
Dianna's health has significantly deteriorated because of ME/CFS (from long covid).
It's easy to speculate on why, but also not fair to any of them.
I hate to watch this happen to people, but at the same time, I silver-lining brain is like "maybe this gives more attention to how bad Covid-19 can become quite easily?"
The update is here
https://youtu.be/vydgkCCXbTA