Great points! I think tiny fraction of those points were meant to be solved with (crisischeckin)[https://github.com/HTBox/crisischeckin] from HTBox, however it doesn't seem to be in active development right now. It seems to me that coordination is key in such situation, I wonder to what level it could be 'automated' by the application so perhaps a human coordinator role can be offloaded as much as possible, so even untrained people can benefit from the app.